So I'm trying to intonate my newly acquired Stagemaster 7. I want it to be in Drop A. And on the low string its sharp when I play the 12th fret and compare it to the 12th harmonic. But I have moved the saddle back as far as it can go on the bridge. Any ideas on how can change the saddles so that I can go back further to make sure its not sharp the further I go down the neck? Or will heavier gauge strings help? At the moment I have 10-56, but have ordered some 12-65 and am waiting for those to arrive. I'm hoping with the heavier lower gauge strings I won't have to move the saddles back as far to the point where I run out of space. Is this correct in my thinking?