So, I'm thinking about getting a second stock for my Bula when it gets built and am weighing my options. I've had a take-off SAI polymer stock before and it was perfect except that I had to glass bed the forend to make it flex less. Is this still a problem with the SAI stocks? If I go with a USGI fiberglass will it have the same problem? Just curious as I want to avoid glassing if I can help it. It was a lot of work. Thanks.