Thats about what I've seen from those stocks. I think the bell and carlsons are a nice stock for the money but that's just it. I have had more mc millians than any other stocks and even those have those bubbles, they are much smaller than that but they are still there. I have replaced recoil pads on my hs stocks and they even have the bubbles under the recoil pads. The fit and finsh of the bc stock isn't the best but if your worried about that just put it back together and don't take it apart and you won't know the differance.