Ok, So I have tried a few ways, been told a few ways and had little success with either unless the wind has been very light on. But how do you land a 13 Rev in 20 knots or a 9 Rev in 25+ knots? I know you can just let your bar go while the kite is at 12 o'clock ( I HATE doing this) or you can try to land at the edge of the window and watch your kite go skidding along the ground but is there a better way? Or am I just doing something wrong?
Kite at 45 degrees and steer it toward the ground slightly. I grab both front lines at the same time (depowers the kite) and as the kite begins to fall, grab the uppermost front line and pull it toward you. This will bring the uppermost tip down into the ground. I suggest practicing in lighter winds first and then build up as there is a bit of technique involved, but it does work.
Probably a little easier to do than explain as well, but I hope it helps a little.
you could always attach it to something unmoveable... car tow bar, fence, a very well marked and protected dog stake/sand peg (so people dont accidently smash their foot into it while your out kiting)... and let it sit at the edge of the window, then get it yourself
I find the 9 rev only 'self lands' using the edge of the window pull the front lines trick in winds up to about 18 kn - this sucks I agree. Most other bow / kite land fine using this technique - I reckon its to do with the fact the Revs dont sit very flat on the their leading edge (good for relaunch). - You could try attaching the leash to the OSH handle and letting the kite fall - though this tends to make the kite spin and wind up the lines - but it might fall softer, cause it will flag out completely. Otherwise throw the bar in the water and retrieve kite, yes you have a wet kite, but no dnager of it scraping on the sand.
Good luck
I find that this problem is with most bow/sle kites, not just a rev or an ion or whatever. I fly airush and they are pigs to self-land if its windy. They just bounce off the wingtip and relaunch, you also can't easily reach a single front line so that option is out too.
My preferred method can unfortunately only be applied on a small handful of beaches in a cross shore wind, ie safety bay (penguins) on a southerly or woodies one on a winter westerly. I try to find a gap in the sand dunes such that there is a wind shadow directly behind it. I bring my kite in low, and as soon as it hits the wind shadow it drops to the ground effortlessly.
In non-metro areas (where self-landing is usually needed the most) you can often land in the pathway onto the beach if it is wide enough.
Glad Im not the only one that has problems. They sure can make you feel a real kook. 
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I do the unhook > pull down top front line thing. Even when all goes exactly to plan I have often had my REV relaunch after it has settled. I advise to never let go of that one front line as you walk (run) up to fully secure it - even in lighter winds.
And always sand down a REV anytime its sitting on the beach. The buggers are just so keen to fly it seems like theres no stopping them sometimes (bit like me really 
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Ben - at what point do you hit your QR ?? I tried this a few times early on and had no success at all.
Fozzy method sounds like a winner - thanks for that one too. At least with that one if it doesnt work first time you are still hooked in and in control.
I've tried a lot of things - I nearly always am self landing.
I sit the kite on it's wingtip, grab the chicken loop above the bar, unhook, and then walk hand over hand on both the front lines moving upwind at the same time. The windier it is, the closer to the kite and the more upwind I go. I then grab the top string and pull the kite over.
I leave the safety attached, and stay upwind of all the lines. If something goes wrong, I can always let go of the lines and let the safety hold the kite. (of course you need to leave enough room downwind for this)
If you don't move upwind, when you pull the top line when it's windy, the leading edge stays high and can catch the wind and cause a flip. Pulling the top line from 45deg upwind makes the kite pivot around the bottom tip with the leading edge near the ground.
I'ts just my opinion, but I'm not a fan of using your safety system to land the kite. Sooner or later it will fail, and your kite will go where it shouldn't. (Particularly with the rev's piece of elastic. I was orignally lead to believe that it had a spectra kite line inside, but it doesn't - it's just elastic. One day it looks fine, the next it comes apart in your hands!)
i hit the qr with kite at edge of window bout two metres off ground....
have never had it try to relaunch or behave bad but maybe im just lucky
dig your twin tip into hard wet sand, tie leash onto handle of board, go to your kite yourself and put it down. works every time. for me i dont like touching lines, this way is better in stronger winds
