Was worth a shot. My grips have ends that come off, if yours do remove the end and shoot some WD 40 inside from both ends of the grip. It should help loosen the glue's grip. If you have any of the glue left, try it on a piece of scrap metal to see the effect.
I just did my grips and I didn't use glue on the throttle side and haven't had a problem with it slipping at all.
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