Hi, I bought an SR900 second hand a few years ago and I gave it to a professional to re-string and setup. I have recently tried to make a few adjustments myself and I have a problem - when trying to adjust the intonation on the E string, the saddle doesn't move but the intonation screw that enters into the back of the bridge moves so that I can see it coming out of the back of the bridge if I keep turning anti-clockwise, and I can see it coming through the saddle if I keep turning clockwise but as I say the saddle itself doesn't move .... it's as if it is locked but as I understand it the B20 bridge doesn't have locking saddles .... well there's certainly no signs of one.
Can anyone advise what is going on here and how I might resolve the situation?
Also what size Allen Keys do I need for the string height screw and the truss rod adjustment?
Also I have just noticed that the repair guy has threaded the string through the back of the bridge, and not through the body as you would expect - could this cause problems?
Any help much appreciated.