DakotaShooter2,
I hadn't really ever thought of using rubber washers for standing off (free floating) a forend from the barrel, but I sure would be interested in the results you get from that process. I'm curious to find out if the vibration damping effect of the rubber would be a good thing or a bad thing.
Please let us know how this turns out. You may have discovered another good way to free float the forends on T/C's. I sure hope so!
Be sure to let us know!
Javelina