The lower the psi the more squirly it will be. Ya 12 will be, 10 was alot for me. But you will never hook at anything higher than 12.On the street it will be a little more squirly. Once your on a Preped track it will not be as much.
You will just have to play with it. But Mine always done best at 12psi. If the track was really tacky I could get away with 10. I have ran 8 before But I got crossed up on the top end. So I knew that was too low lol.
As for the tire only leaving 2 marks on the outside edges and not in the center, Its cause it don't have no weight transfer to it. If you got some weight on the rear end it would squat and wrinkle the tires and use the center of the tires more. If that makes any sense.
