5000 is too thin from what i learned last weekend with jack the gripper. My car was rolling way too deep and was almost jack knifing in the chicanes. 15,000 in the tubes,red center spring with 40 wt. oil and the long ballstud made the car unreal. I ran my batts in the middle,sauced 3/4 the inside up front and full rear. I let the traction soak for 30-40 minutes. I ran #3 sure lube on the kingpins also which i think is about 7000 wt. The tires i ran were purple fronts and yellow rears. I am still having nice dreams about how the car ran