The factory poly seal is also quite forgiving of seats that areApril 15 2017 at 1:09 PM
|Scot Laughlin (Login classicalgas)|
Response to The stock QB poppet...
not square to the stem or slightly damaged, unlike harder materials.
The downsides are... they used to fail early at anything over 1500 psi or so, and they don't open as easily as harder seals, so power is limited unless you stuff a stupid spring in there.
I think QC and materials in the QB's have improved a lot in the last decade, so you probably wont have trouble lapping in a hard seal, and you aren't likely to have troubles with the factory stem.