I have a nice full splice custom by a well respected maker and the butt has a noticeable lift in the middle. Never had a problem with its playability. It sucks knowing its there but other than that I don't notice. I sent it back to see if anything could be done and he took the added weight out of the middle, filled it and redrilled it. Helped it some but still not straight. I expect when I try to trade or sell it I'll lose a couple hundred.