Roughen the inside of the foreend, and use a small amount of boatbuilding epoxy resin with microballons in it to lower the density. Hugely stiff, impervious, and sticks like poo to a fancy bed covering. Then pillar bed the thing, job done as good as you can with one of those stocks.
Re: torque settings, the plastic in the stock is compressible so unless you pillar bed forget setting to a torque. Just tight (that's the 'just' tight not mechanic red face tight then a little bit more torque to yield...) and a bit, say 1/8 more of a turn. You'll be pretty repeatable if you do that each time, just don't go too much.
Bookmarks