On a unprepped track i would lower my PSI down to 10 and i would cut low 1.6s still spinning. Just keep lowering till you get used the swaying and get it down to 11. Buy you one of those 2 gallon air tanks with the compressor on it and take it to the track with you so you can put air back in the tires when your ready to go home. Thats what I do.