The DBK, depends what you mean by unpredictable. I run mine on the street if I know I'm going to need them, if you know what I mean. I run 30lbs. psi until it's time to get serious then drop the pressure to 11. At 30, they are decent handling i.e. they track straight, but still have some noticeable sidewall roll. At 11lbs. you will need to concentrate on keeping the car going straight as the sidewall flex is pretty extreme=very good for drag racing, VERY bad for corners. I had BFG G-force DRs previously and I prefer the cheater slicks for basic everyday driving IF there at 30lbs. For a drag strip tire on 17s they are unequaled, imho. You'll never get the handling of the F1s no matter what tire you swap into the back (assuming a mismatch front to rear). but I will definitely replace the ET Streets with the same when necessary. I definitely will not by another BFG. Hope this helps.