Originally Posted by ALIAS KILLA
I swapped my old Piston back into the regulator and it fixed the creep. Everything else was the same. The reason why I bought a new reg was the inside was gouged due to previous owner not setting the set screws right.
I am not sure why the old piston would work and the new one wouldn't..
that is odd. can you post pictures of the new piston the seal and the seat?