brand new and 42 psi they will feel sloppy for sure. I had this exact thing happen last week. I dropped the PSI to 30 and gave them a few heat cycles and now they are much better. They are still a tad bit less planted than the OEM tires, but nothing like when they were brand new and they had 44 PSI in them.
But my 60-130 draggy times dropped from 6.4 to 6.1 in 78F weather. when cooler weather shows up I'll be in the 5's.
Not bad for a bolt on ZL1
