Tire Softener

Hey guys,

Just curious, maybe some of you drag racers have some concoctions. Everywhere I check for tire softener, its "totally undetectable", "will beat any durometer test", blah blah blah. Thats not what I need, I need SOFT, my rules say they must be stock tires, but say nothing about using chemicals. One thing I was told of was 2 parts trans fluid and 1 part paint thinner, supposibly that makes the tires pretty soft. Just curious if you guys have any other ideas.

Thanks for the help in advance,

Brandon