An extremely responsive 1951 Gibson SJ that was refinished a long time ago.  This mahogany back and side slope shoulder has been in the shop a couple times before and it's always a pleasure to play when it stops in.  This time it was in for a minor tweak.  The player was having troubles on a recent recording session where the high e was not ringing out clearly.  I ended up shimming up the saddle about 1/32nd and removed the string bite in the top of the saddle.  The high e string had worn a groove into the saddle which (along with the low action) was choking it out.