Drag Radial Tire Pressure

I typically run around 19 psi with 1.4x 60’ on my radials. But that’s not always the case at every track, or every lane even! Last week I ran 1.4’s in the left lane and 1.7’s in the right lane at this particular track and I couldn’t figure out what prep they did to make the lanes so different. Could
Be dealing with track prep issues.

Also have you tried rolling into the throttle instead of nailing it right off the line?