I have a Cromwell (Gibson house brand) archtop that dates to between 1937 and '42. A knockoff of the ES-150 (Charlie Christian's preferred guitar) w/o pickup. It's my "finally happened" guitar -- found at Salvation Army 15 years ago for $40 with cracked bout, small top crack, and cracked neck joint. At $40, I thought it was worth trying to revive. I glued everything together without much care or diligence, and to my surprise, it's been stable ever since and plays fairly well. I'm considering putting a Charlie Christian-style pickup in it. I'd normally get all knotted up about its being original, but considering its condition, I'm not bothered. But the big question to me is -- do I risk opening up those old cracks or otherwise undoing my rescue job? Would I be better off to just put an acoustic-style pickup inside and be done with it?