I've got the BFG's too. I've had them for about 3 years now? Maybe more like 4 years? Heck, I can't remember. It's been a while.
Up until this year, they have been great tires. Nice for a guy like me who is making decent power and not much in the way of "hook-up" suspension. They are starting to dry out now. Not as soft and sticky as they used to be.
I still can't launch my car for crap. My best 60' on them was a 2.0x. I guess I just have to keep practicing.
Great on the street.
E