You can lock the buttons to prevent accidental pushes. Works quite well. And you could move the ccr option down from the single/multigas so it needs more than one push to change. Put some non diving in between.Dont yell at me - didnt read all posts - Its a Mk2
I love my Garmin but for some reason my wrist will bump it into CCR mode - last trip to largo serveral dives were logged as CCR
Any way to stop it from doing that - or just make sure and check it before you submerge.