Lone wolf: I'm assuming the material you are speaking of is similar to that used in Mod. 70 stainless model stocks or Ram-line stocks. So: I was told that glass bedding compounds do not make a good adhesive bond to this material. That being the story I had to try it. I prepared the bedding surfaces by working them over with a small burr in a Dremel tool. If the materials don't make a good chemical/adhesive bond my theory was to give the stock enough rough surface to ensure a good mechanical lock. I've done about a dozen of them to the complete satisfaction of the owners. The compound seems to be hanging on like, well, glue and the all shoot very satisfactorily. All the stocks had too much forend flex to suit my taste. None of them are particularly light to begin with so I made them a bit heavier yet by filling good portions of the barrel channel with aluminum channel metal (U-shaped aluminum with about 1/8" thickness all around. This metal was also glassed in place using the mechanical lock method. Result: little forend flex and no forend slap against the barrels which were floated. I used commonly available kits, mainly Micro-Bond. None of the rifle owners complained or possibly even noticed that the stocks had gained weight but all remarked on improved performance. stocker.