i wonder if it would be worthwhile for one of the "custom" riflemakers( ie m14 doctor or equivilent) to offer a "HEAVY" VERSION OF THE M14 /M305S IN A PACKAGE- ie a usgi or custom cast gas cylinder with SADLAK piston installed - ie you send the rifle to the smith and he swaps out the chinese gas cylinder and piston for one of these custom units, does a test fire and sends it back- there's an awful lot of guys that prefer the 180 grain pills and this would address that- or is there more to it than that and i'm missing something?