So far the caltracs and tires work well together. I haven't made huge power yet though, its running 1.7 60' and has never slipped a tire. A buddy of mine has the same setup on his demon that runs high 10's on only a 275 wide drag radial and has no wheel spin. I'm really believing that monoleafs and caltracs are the way to go for a car that sees lots of strip use.