I had a class "A" pulling a dolly. For overnites I leveled the MH easily with the dolly attached...mostly because the leveling involved the front-end more than the back. Now I pull a 5th wheel. I watch the hitch closely when leveling the six jacks manually for overnites. I usually only do the-front-to back for the fridge. Overnite the side-to-side isn't critical for the fridge. No automatic leveling with anything attached for me.
Once I detach I hit automatic button then go fetch a beer while she's dancing.
2019 Sandpiper 379FLOK, F350 Lariat 6.7 DRW, KN4YBP APRS, NRA Benefactors.