NOE 360-200 mould exchange ??

I recently acquired a NOE 360-200 RG2 mould (two bullet version) from a member on Cast Boolits. The mould is a non-gas check version and it appears it has never been used. It has the flat pins, the cupped pins and the HP pins. Will NOE allow me to exchange this mould for the same mould but in a gas check version ??  I’ll be shooting close to max loads for this HP .357 boolit in a handi-rifle for deer. Will the gas check version of this boolit be better at preventing bore leading ??  I’m planning on casting this boolit using a 50/50 alloy (50% pure, 50% wheelweights, tin added) to get good expansion on the hollowpoint.
Thanks …
Ohio Rusty ><>