I need some hook

Radials do not like a hard initial hit from my experience. Right now you have to pump them up to keep from crushing the sidewall. It's a chicken/egg or drifting down the rabbit hole problem right now.

JMO, it's the aggressive bar setting at the root of your issue. Settle that down, you can run less pressure. Slightly less pressure, better footprint. I'd run 20# and see how it does. Keep in mind that guys that run a 275/60 can run less air than a 255/60 or a 235/60 tire can on the same car/wt. I've had 275/60 A body cars run best with 22#, so it's car dependent. The car will tell you where it wants pressure, find the best 60' time at the highest pressure.

Make sure any adjustments/settings you make to the bars are with drivers weight in the seat. IIRC, CalTrack says 1/2 turn preload on both side. Others like one side with either touching or a flat or two preload and the other side with just touching or small air gap. Same deal, the car will tell you what it likes.

If car goes left, add preload to left spring or pull out from right side.

Agree on small burnout. Another rabbit hole deal. It's not hooking, tires aren't hot enough. Radials prefer a short quick hit for burnout, just a rough haze is usually good enough. Any more and they get greasy.

Slicks will not likely fix your issue. It will change the dynamics of your problem.