Looking at buying a used drop in replacement stock for my new 700 sps varmint 308. I'm looking at the h-s precision pss stock, but am still looking at mcmillan and bell and carlson w/ the full aluminumm bedding block. Rifle will be used for long distance paper shooting and predator hunting. Should I just get it fully glass bedded or are these drop in stocks w. bedding blocks just as good?