I understand they make both a "DOT" wet and a supersoft wet. The DOT wet can be run on a dry track (like pirelli MT60R's no doubt) and the soft wets are for a very wet track only. Which did you use?
I have a 'not for road use' avon wet on the front, the same as Mot. I have put about 800 miles on it and it still looks fine

It has never moved on me, not even at reading on the wet day.
The Dude has the legal one and we were comparing them. We thought tha mine might be softer but they felt the same heat after a run but mine had a few more bits stuck in it, so might be a bit softer.
Definately reccomended. Not tried the rear though.