The C3 power pack instructions won't tell you to cut the plate because they already include one. Because of the price Alto charges for the C3 pack is was just buying two C4 packs and getting plates cut on my own. The solid steel kolenes only come in .086 and .098 in the "kits". If you don't trust your guy then I'd find someone elseWhen do you plan on building with the g4s ? Let me know how you stack em and if you end up needing to thin the apply plate to get all the steels they come with, I don’t see in their instructions where it says to thin out the plates but I don’t know the first thing about rebuilding transmissions I’ll be pissed if my rebuilder doesn’t use all the plates or worse uses them without proper clearance