I have to wonder if many of them use a traditional stock, cause that is the way we always done it. I just can't see the advantage, other than it is pretty.
I have only shot semi autos with pistol grip, bu have thought about build a bolt. It just seems more comfortable. There have been times when shooting for long period my first gets stiff in that odd posisiton. It is not a natural position. But as I said I have not fired a bolt with grip. But it sure seems left over from when we carved stocks from wood. But now we got all kinds of fancy metal and plastics we can use.
If you ever start to get joint pains, they talk about keeping your wrist at natural posistions.
I agree you can get the length fitted to you. Of course it only fits you in one state, jacket on or off. As opposed to stocks that can be adjusted