If you purchase a high quality camshaft and high quality timing set do you just use the 4 degree offset available on most crank gears to move the cam ±2 degrees relatively (while degreeing it) and call being within 1 degree of card specs a day? This would adjust for something that initially was off by 3 degrees (bringing it in to 1 degree off). I assume being 3 degrees off initially would be on the large side allowing the 4 degree crank offset to take care of most problems? Also assume this is the case as adding an offset bushing is not a simple task necessarily and in all that I have read is never discussed, but at the same time I never see discussed how to bring the timing to within spec.....usually it just says adjust and recheck with degree wheel without describing the "adjust" part.