[quote name='stoo' post='376738' date='Jan 11 2009, 01:05 PM']But what about the break angle? If the string anchor point is a further behind the saddle length-wise, or further from the body height-wise, then the saddle itself will get less downward force from the string to hold it in place.
Also - how well are the saddles held in place before the string is put on? On the stock bridge on my MIM Jazz, the spring wasn't long enough to hold the saddle firmly in place and that used to cause some weird noises... probably just vibrations from the spring itself, but it went away once I replaced it with a Hipshot B....
I've seen some bridges have an extra screw that goes through the side of the bridge, and then presses against the end of the saddle for either the top or bottom string... this clamps the saddles in place once you've set the intonation and helps prevent any unwanted vibrations from the bridge. Is it possible to simulate something like this by wedging something between the saddles to try and lock the saddles more firmly in place... it might at least confirm that it's definitely the bridge that the noise is coming from???[/quote]
I've just done some checking on this. The angle of the string as it comes out of the back of the bridge and onto the saddle seems about the same, 5mm as it comes out and 1cm as it reaches the saddle. The saddles are also set to the same distance on both bridges, ie both are set to the intonation, E saddle closest to back of ther bridge and each saddle slightly further forward after that.
The Gotoh is chunkier but less than 1mm taller than the stock bridge. Would such a small increment have an effect? The Gotoh also has grooves for the saddle's grub screws while the stock bridge does not so the saddles are pretty stable where the stock ones slide a little when you restring.
The springs and screws on the Gotoh are more substantial than the stock and the spring on the G string is not at full stretch so it's all held together very well and nothing is at one extreme or the other on either bridge.
Thanks for the advice so far guys, it's much appreciated.