I have never used either of those systems so can't give you an informed answer but I can tell you that the secret to even development of color prints is consistent agitation and speed in filling and emptying the chemistry. As to agitation, one complete revolution every 1 1/2 to 2 sec is sufficient and allows you to rotate in both directions. The large 2in elbow allows filling and draining the tank in less than 5sec for either action. You said that your cap was difficult to remove and I found that true even with the PVC cap if I pushed it all the way on so I put a piece of tape around the tube at the point where no leaks occurred and yet still allowed easy removal. Just remember NEVER pre wet the print to temper the tube as it will cause staining and uneven development.
Denise Libby