We have a Swift 145Rb-Baja Edition. It came with 4 stabilizer jacks, one on each corner of the TT. Each BAL brand unit is rated for 1500 lbs, or a total of 6000 lbs. Fully loaded the 145 Rb weighs way less than 4000lbs.
Do you have stabilizer jacks on the front corners? With 4 stabilizer jacks we are quite satisfied with the unit. First, I level it from front to back with the front crank, then side to side with either the front or the rear stabilizers. Usually we are parked on a reasonably level site. I have not yet found it necessary to consider switching to scissor jacks.