Go ahead. Your version looks interesting too, and I'd like to try it.
Well, in general, if you have more freedom the puzzle is easier. So for instance a puzzle with only 6 possible moves that interact in complicated ways will be very tough, whereas a puzzle with 100 possible moves that each affect a very small part of the puzzle would be pretty easy. The number of positions on each wheel shouldn't matter much; what's more important is how many pieces are affected by each move, and how hard it is to move only a few pieces without affecting the others. In the case of my Quadplex, it will be pretty tough to move the small pieces around independently. I think your Quadplex may even be slightly easier than the Triplex, since each move affects a smaller part of the puzzle, so it's easier to move pieces around.
I only solved it once (I don't really like simulators so it took me long enough since I kept destroying it) and it worked perfectly. There was no thunder animation at the end and the menu was different from the time I solved the triplex but that's all I noticed.
