I have found THE solution for me to have a waist harness that does not and cannot ride up. It may not fork for everyone but here goes...
I bought a cheap shorty 1.5mm - about 20 bucks, cut off the shorts part and the stiched this to the back and sides of my prolimit t type waist harness. Not attached at the front. Works as claimed. You pull these shorts on over your wetsuit (or go commando ;)) with integrated waist harness.
The only downside is the safety aspect - working on a solution to make the non quick release side release when pulling the QR tab. This can be done e.g. using a metal bent to hook the spreader bar which is kept in place under tension (dont forget a bungee to not lose it in case of release).
Lets see how long it lasts...
Thats one option...other option is to get a modern fixed hook waist harness and wear it loose (& I mean really loose). The harness will naturally pull into the correct position when you put load on the harness lines, but will drop back to your hips when you are not using it. Plus loose harnesses looks cooler.
I like to hang in my harness and in the straps when coming off the plane or even before planing. I got tired from the harness at the armpits. It will end up there sooner or later no matter what you do. For this to work you need a high boom and long lines to leave the sail in front and upright.
I hear you there are other solutions of sorts. I tried this concept and completely forgot about tge harness until after the session. To me this is the sign off a good tool.
On the looks front you cannot tell that it is not simply a waist harness. Just colour match the wetsuit.
Not saying it will work for everyone but another cheap optin to try for those struggling with this issue out there.
^ Yep, that's what I do and all the girls whistle at my tight butt. And if it wasn't for the seat harness my butt would be covered in pinch bruises.
Flying objects used to make a waist harness with a set of underpants sown in. I used to think it was to stop the brown stains showing through. now i know different.
I love my Flying Objects Transit harness so much I dunno what I will do when its worn out. Absolutely the perfect wave seat.
That's why I like the Transit, its a waist harness with a nappy, not a seat with a high ish hook
Any surf seat should be similar though - ie: have a waist harness hook height
Show me a guy whose waist harness doesn't ride up and I'll show you a guy with a waist.
For the rest of us, there's the old XT-Seat. Good back support and you can loosen the lower straps and tighten the top straps so that the hook sits at waist height, or do the reverse so that it rides low like a race harness. Not stylish but for some of us the stylish train left a while ago.
I got one of these from Japan. Ir was expensive and the hook height is lowish sort of mid way between a Race seat and a waist. I was not sure at first but now grown to love it and I am now finding you can wear it higher if you want. If fitted properly it does not ride up. I am sure it will not be for everybody though.
www.libertywinds.jp/english/products/harness/index.html
Mr Love you can get that exact one also done by starboard/drake
www.google.com/url?sa=i&url=https%3A%2F%2Fwindsurf.star-board.com%2Fproducts-2019%2Fdrake-harness%2F&psig=AOvVaw2sSOHkedUQ0bFBwZ5VLccF&ust=1599537349498000&source=images&cd=vfe&ved=0CAkQjhxqFwoTCMj84I6T1usCFQAAAAAdAAAAABAJ
much prefer the color of the japanese one though !!!
I'm using a kidney belt style kite surfing harness with a windsurfing spreader bar. As long as the kidney belt is reasonably tight it doesn't move at all. I bought it second hand for foiling after seeing so many guys on chest and waist harnesses at the foil worlds. Suffice to say I won't be wearing my seat harness foiling anytime soon.
Harness should ride a bit up in situations where we need to crouch down while hooked in (obviously ;) ...) So the point is to not do that or get a seat harness or a harness that has more bite (wetsuits are normally quite sticky) or better fit.
However, in the majority of scenarios, our hips need to go outward, not downward. This is key to get good drive from a waist harness through our legs. It's more complicated technically for sure and can lead to back problems too.
One tip to better feel for the harness work is to push the boom away from us. This sets all the focus on driving the board with our butt and legs rather than our arms.
Anyway, the idea is to keep legs more straight, staying up on our legs with feet pointing pushing on the board, butt outward, arms relaxed, maybe even shoulders forward.
Similar position to leaning against a wall with straight front leg (drive) and sightly bent back leg (control).
Yes, I often stay in the straps hooked in waiting for the next gust. It works when the wind is strong enough.
It's tempting to sit down, lower our center of gravity, etc. However if one is in the harness then there's enough wind to stay up and drive the sail power by sticking our bum out, leaving the crouching down for extreme light wind or passing over a larger wave.
The board moves forward if we push it downwind basically, weighing down on the board helps our balance but hurts its momentum.
I do need to remind myself to stiffen up sometimes, resist "sagging" and drive bum out. If at slow speeds we can leverage this technique, any time we're hooked in.
EDIT: I wear my harness over a very slidey rashguard. This let's me rotate it to the side so I get into a better position to point upwind. In theory it'd be more prone to ride up but not at all. It's also not on super tight either, just firm.
This thread has been going for a while now.
it seems only fitting that someone writes the obvious truth - namely that waist harnesses don't rise up if you are in correct sailing stance.
It doesn't actually matter if you have a waist or not - or a chubby/beer gut - what is key is that, when sailing along, your shoulders are outboard of your waist.
The pull on the harness lines should be outwards when planing in the straps.
The lines only pull upwards when you are hooked in when slogging - and that's because you are standing out of the straps and nearer the mast, making the boom effectively higher.
People who keep advocating the use of a seat harness as the solution, or some other weird idea, have yet to get their sailing stance right .
(And they usually get annoyed when they are told this, but it's true. )
How high is what you call a medium and/or high hook?
At my surf spot (not really local, but I guess where I surf most) most people look like they have the hook quite high. Mine sits right on the navel and it stays there the entire session. I guess this is medium. Could be interesting to have a low hook alternative for light(er) wind days which are about 50% of my sailing.
In the past I have had the tendency to rigg too small (I'm 98kg). A better choice of sails definitely helped with harness issues due to better stance. I now ignore what others are rigging as an initial guide - just look at the water.