Could you provide some examples of how you prefer to hold your pen versus how the buttons are forcing you to hold your pen? Holding the pen hasn’t been an issue with me, so I’d like to see how you’re holding it and what’s changing. Alternatively, you don’t have to use the buttons, as convenient as they are for certain actions. I don’t ever use the “Erase” function on my pen because I just use the shortcut key for that. It’s faster for me to hit some keys than to flip the pen over. But whatever fits your workflow.