while i had my sks-d apart fitting a new stock to it I figured it was time to show the gun a little bit of love. I upgraded to a fiber optic front post and ts200 rear sight, bedded the stock, polished the tigger and added a wollf spring kit. I had some stainless laying around and figured i would biuld a stainless piston and rod, while googling around for other modifications I came across a couple posts claiming that drilling extra holes in the gas tube and thus reducing drive pressure on the piston is allegedly suppose to help accuracy, what says OSR? any truth to this? if so whats the therory behind this mod?