I don't know anything about Bic Speedster, so I can't comment. With regard to size, you need about 9-9.5 sail to maximize lightwind days on the lake. I also think that you should be able to plane in around 14-15 knots with a 7.0. For the coast (20 knots + 2m swell), you'll need MUCH smaller board (around 100 lit I guess + 6m sail), but it's hard to say without knowing the conditions. At this stage, you will probably need to sort big rig first, then to move to a 120-130 litres board before you are ready for the ideal "coast" board. And I bet you didn't know that there are some fantastic conditions to be found on the Danube river ;-)
I've sent you a private message, you can contact me there.
Last edited by Screamer; 17th April 2008 at 05:03 AM.