Originally Posted by mikeyCOA
i don't have tuning problems. but if i hit harmonics on two strings simultaneously and bend up or down, they don't stay in tune together.
Sorry but not even Joe could get two harmonics on separate strings to bend by the same intervals simultaneously using an Edge or Floyd Rose. It seems you may be confusing that hypothetical technique with Joe's habit of striking a pinch harmonic on an open string while using his fretting hand to work the bar, which has a different tonal characteristic to fretted harmonics and tends to allow some of the original note to blend with the harmonic.