Wets
Riding on track in the wet really isn't all that bad. If you have a well set-up bike on full wets the amount of grip that you can find is phenomenal. It's simply a case of being smooth and progressive with the throttle and when braking keeping the bike as stable as possible. The best wet weather riders are those that do those two things extremely well, combined with a good set-up, and can subsequently better exploit the grip that exists. The only point to note is the margin for error is a lot smaller on a wet track and the risk of crashing is significantly higher. I did exactly that last season...