It’s a solid two seconds to engage. Fluid level is good, however I’m trying to remember if it’s recommended to run these trans over full a little? I’m right around the hot mark when hot.

Yes, going a bit over-full is necessary. The hot level is still lower than it should be. Anywhere from a half-quart to quart may be necessary; add gradually and see what happens.

FWIW, I also have a Suncoast TC (no Transgo / Sonnax kit, however) and have no problems provided that the Jeep hasn't been parked for more than about three or four hours. After that, it's necessary to give it about 10-20 seconds of idle time (depending on how warm the transmission is) in Park in order for the transmission to build up pressure before driving. After that point, it shifts completely normally.

I really need to drop the transmission pan at some point and see if the spin-on filter is still fully in place; it's the return line filter and is responsible for keeping fluid in the torque converter with the engine off. Take a look at TSB 21-016-05 for details - if the filter that's currently in yours matches the suspect part number, that may be your answer.

What’s interesting about this is that it’s all the time, so it’s not a TC drain back issue, I can drive for 5 miles and then reverse into a driveway to turn around and when I put in D again it will take a 2 count to notch in.

Could this be because I omitted the resistor in the shift kit? The instructions didn’t even describe where to put it.