If MPS were going to make any modifications I can think of two that I would really like.
1) The radius reduction screw is razor thin and is difficult to get their tool on. You also have to really crank these things down to reduce anything.
2) The fact that it's impossible to preset mps (90, 210, 270 being the exception) without turning on the water is a bit of a pain. It would be nice if they could somehow come up with a secondary mark on top of the nozzle for when you are opening to the right. Not sure if this possible, but spitballing in case hunter is listening.