I actually like the GenIII unit, but saw no way to adjust one side over the other. Maybe I missed something. but if I wanted to put 20 degrees on one side and 15 on the other, I don’t think I could do that withy the Gen III. the Gen III is 50 dollars cheaper than the Pro Pac II , I love the mechanics of the Gen III, on another note, Ive looking at some sort of condom to protect the ball joints from contamination.. Ill figure something out. ( Ive yet to receive my ProII system ) but have been looking at ways to make it even better ( the mind of a Born Engineer. ) right now IM looking at cutting the shaft off a balloon and a micro zip tie on both ends, to protect the ball joints. Ill post a picture when I get my Pro Pack II, if anyone is interested.
I use the fingers off of latex gloves to protect the ball joints, just snip them off and the let the arm poke through and you have a nice snug fit.