If you are playing on one of the fantastics Ibanez AS series, you will discover, that the only issue is the Ibanez-tuners. So replace them with these Gotohs. Remember the screw bracket angle on Ibanez and other guitars, it is 45 degrees on Ibanez AS. These Gotohs has the correct angle for those, so you don't have to make new drill holes. Use screws from your guitar, not the ones that are enclosed in the package.