I had two engine at this race, one with capricorn clutch and one with the shepherd clutch. Both worked great in the qualifications. For the final I choose the engine who was newer and this was the engine with the capricorn clutch.
I will do more tests with both clutches later this month.
Jilles
Thanks for the fast reply, first of all. I have one more question: For how long do you use an engine until it gets older/slower compared to a new one?