I play thumb-over technique on my 1st fret F barre chords and on my 15th fret G barre chords. Suffice to say I use this style a lot. I’ve played this way for over a decade but it was always on an acoustic strung with .12 gauge strings. I certainly play heavy-handed. Recently I’ve been playing a Stratocaster with .10-.46 D’addarios, but my thumb seems to pull the bass note slightly sharp. This was never an issue on my acoustics that had heavier gauged strings. And while my technique may change with more experience on the strat, it’s not something I want to spend time consciously developing. So I’m thinking this is a perfect reason to switch to a heavier gauged string on my strat. Thoughts? The next step up looks like .11-.49s. That would be a .03 increase on my low E (trouble) string. I know this would require setup changes and maybe a nut filing. But I’m interested to hear if anyone else has encountered this issue.