I just swapped out a Fender strat body for another and it seems like the string tension got stiffer. Same neck, same hardware and everything else. Didn't need to adjust anything really since the action ended up being the same. So why is this? I see this with same model guitars in stores as well. "Some guitar just have a stiffer tension" is what I hear. But why is this and what can be done? I don't feel like going down in gage from 10s to 9s.