[Big-Foot]

Hi Jim - Many tire places won't touch a tire for shaving once it has been run on the street due to all the crud (pebbles and such) that are stuck in the tread of the tires. It ruins their bits.

I have had pretty good luck in marking the tire and the wheel, breaking the bead and rotating the tire 180* from where it was and then re-seating the (well lubricated with soap) bead with high pressure air. Make sure that the valve core is removed from the valve stem when doing this so you can get the higher volume of air passing through the stem while inflating it.
The problem you are having is not just with the wider BFG T/A tires, but with any wide 14 or 15" tire that has a lot of sidewall and a lot of tread.