You can pretty much tell the lack of length on the Mapex even though a small part of the DW is out of frame. The Mapex rod is as long as others but your not able to use it if you so desire like other HiHats because the tube is so short. I can make it work but I wish I had another inch or so. Where have I heard that before? If you have a higher kit or you like the HiHat higher out of the way of your left snare hand, you could have a problem.
The Mapex Throne is the opposite. Luckily the lowest it will go will work for me but if your kit is lower or you're shorter, you could have a problem here as well. I might add, the Mapex drums and Falcon double pedal are great. I'm going to have to adjust the slave pedal, it's out of whack but the primary was perfect out of the box.