I actually have one of the 2950's on a stainless ADL MT rifle. It should have been a straight drop in, and would have been if B&C had drilled the action holes straight. Since it has no aluminum bedding block it is the only B&C stock that feels trim and is fairly lightweight. They will also be the easiest of any synthetic stock to break since they have very little support.
I haven't actually weighed one of the laminated mountain rifle stocks, but it is a pretty trim piece of wood. I'd bet there is not much difference especially since many of the B&C stocks seem to be a bit heavier than they advertise.
