it's so windy Anders B. once used a wave sail for a 25km speed dash I believe in 40kt winds and win it..and the top Japanese woman sailor just cried for just finishing it!
Young Luke was recently there racing(RSX), he said there are a few nice speed spots over there and it blows like crazy.
Here's the link to Luke's Penghu thread with a photo of potentail speed strip.
www.seabreeze.com.au/forums/Windsurfing/Queensland/I-have-finally-solved-the-problem-of-no-wind/?SearchTerms=.