Bulletpoint Mounting Solutions Adapter

Do you have an early Bulletpoint Mounting Solutions clamp-style phone mount, and the rubber grips came off? Did you see that they're only $3 on their website, but $9 shipping? I decided to whip this design up real quick and see how it works. When offroading, I find that my phone will slip down the mount, and eventually turn my music down, lock my phone, etc. So this is there to prevent it, while still allowing access to the charger and the clamp feature to hold it nice and tight. Let me know what you think of this! NOTE: These are side specific, and only go one one way. If they feel too tight, try it on the other side of the mount.