I'm wondering how common/realistic it is for a do-it-yourselfer to install their own nuts and bridges? I've got a $600 Ibanez with good body & neck, but everything else is rubbish. I don't want to sink too much money in the bass, since at some point, it makes more sense to buy a new bass. How precise are the "tolerances" when installing a bridge (without routing...) or nut? For the bridge, I was planning on using the position of the current one as a "centering" reference (marking with masking-tape before I removed it), and likewise, marking the length of the typical string (intonation). Sources of error I can see are: * Not having a sufficiently precise measuring tool * Not drilling the holes sufficiently accurately Any "words of wisdom" from those who have tried and either succeeded or failed?