Pretty much, yes.I am guessing that any of these techniques do is to not allow the plunger to travel fully into the seat which will allow some fluid to bypass. Is this correct?
I had a friend who runs a CNC machine, make me some of the shims just like the ones sold on EBay. Except mine cost me a lot less. If anyone wants one send me a PM. They will cost you 10 bucks, and that includes shipping to the lower 48, but it does not include the replacement bolts, because you can get them cheaper than I can mail them to you.