One thing to be careful about when changing bridges on the PitBull gear is that the guitars are built for the bridges that they come with. Generally not a major issue, but if you end up with a bridge that's lowest configuration is still higher than the kit one, you can end up with a horrible action - or needing to do some more work like recess the bridge or shim the neck to get the strings down. I swapped out a Jazz bass bridge for a high mass bridge (see it here http://www.buildyourownguitar.com.au...?t=2174&page=3) - and needed to recess the bridge to get it playable.