Stabilizing jacks are different from leveling jacks. I'm not sure the frame of a TT is stiff enough for leveling jacks. It is better to level using the tongue jack and the axles.
Lee and Anne
2016 F250 2WD CC SB XLT 6.2 3.73 locker, 3,295 Payload 2014 Salem Hemisphere 282RK 7.8k lbs loaded, Equal-i-zer WDH
I use a cordless drill to crank my levelers. Smooth, easy and firm. A quick spray of lubricant before each trip and I don't get in a hurry so I don't jam it or damage it. No sweating for me.