How accurate is your app? I have a basic leveler IPad app that only shows whole degrees. My Stern Lightning uses the same 28.5 legs and and I have the rear levelers up only a little higher than the front ones and doesn’t play slow. Reads 5 degrees but I can tell by tweaking the Pad either way it’s more like 5 & 1/2. You say u disconnected the tilt... were you unable to adjust it to center where you have the levelers cranked now? And what is the exact point where the balls are getting hung up there around the inlanes?

That’s a strange spot for the ball to get hung esp. since you have it leveled horiz., might just be dimpled a little there from balls dropping down there a billion times. And yes the wireforms should sit straight up, not bent.