I'm thinking of fixing up my old guitar. It's a beautiful guitar, but it's getting old(could use a re-fret, the electronics are going bad) but will this drastically alter the guitar I know and love? Also there are small cracks in the bridge inside the tremolo cavity, how big of a problem is that? And is it anything blocking the bridge would fix?
not really.. It will make it better... Just make sure you tell the tech what you want done
It will affect the tone most likely, yes.