Both the HD and stock pads glaze and do not hold power. If they slip they will eventually glaze and you will run out of adjustment. If you are going to run the HD pads you almost have to have the clutch basket, with the Garodisc you do not need the basket and these disc will slip and then grab like a real clutch. Even while they are slipping you can still pull the front wheels off the ground if thats how you have it set. There is less heat because they are not excessively slipping. And they do not wear out.

Too much to go into details about the pistons on this thread but in a nutshell you get adjustable compression and rebound, you no longer have to compromise pack with rebound, end result is more traction and significantly quicker and more consistent lap times. i have sold ALOT of these for the SC104x4 (actually my best seller) so i will let some of the users chime in on their results. in the meantime here is the thread on them:

http://www.rctech.net/forum/electric...they-work.html

hope this helps!