Yes. They work fine with the 40mm flywheel I have.
The MIP Clutch shoes can be set up to work one of two ways. I dont have the sheet here infront of me. But if I remember right,the first set of holes are for the quick launch. So they engage quick. The inner set of holes are for a later launch. So it lets the motor rev up alittle bit more before they engage.
I will look to see if I am correct. But those are the options you have with those clutch shoes.

Integy is basicly only good for show and thats it. I think I even saw a ad somewhere where they say that. If you do use their parts for racing or bashing. I would say as long as they are not parts that take any abuse. You will be fine. But in your cause,with the clutch. Your better off using the MIP.