I have a Varmint Model 12FVSS in 308. I want to put the oringinal synthetic stock back on it so I can shoot it in the factory class match at a peticular range. Rules say the action may be bedded. My gunsmith likes to use Devcon for beddeing. Is it unreasonable to just fill the extra openings in this stock (not the whole way out the forearm) around the action? I guess the question is, what works best with a cheap stock? And remember, the purpose of this gun is original factory. I have to use this stock. Thanks!