[Speedysnake]

I've been fussing with front wheel / tire problems also, specifically the 15" BFGs. I found the lower the front tire pressure, the less vibration. I had them down to about 22 lbs. when I felt the steering became a little vague, (maybe not a good description) I'm back up to 25 lbs in the front & feel pretty good. 28 in the rear seems fine. It's OK for highway driving. I'm planning to go to the Reptile Roundup next month, if I get "hooked" I'll probably buy 17" rims & tires for the track.