My WW CL 4005 went thru 3 sets of single motor jacks before I bit the bullet and went dual motor. Tongue weight is really too much for a single motor, and they died in a very short order. Especially if you had to do a full range up and down when parking/ leveling. As stated, just watch how much you twist your frame side to side when leveling. If the doors start sticking and acting funny, you probably didn't level your center mass properly. I put a small bubble level gauge right by the switches to reference visually. Adding the extra motor also freed up some additional room in the front. Easier to change LPG bottles since adding 1 more, and I made a rack and added 2 more batteries.
