Alesis Pro X 12" Hi-Hat my fix. the top cymbal that comes with this kit sucks. I've been using the original Hi-Hat cymbal with a few layers of cardboard taped on the outer edge. just finely got around to making something a little nicer. print two of these with one being mirrored. 1mm+ walls and 10% infill worked for me. mount with double sided foam sticky tape. this tape avg. 1mm thick, if you use anything else you will need to adjust the part. Added: scad file with easy to edit. if you print one of my files and have issues, just want something tweaked or have ideals on how to make it better. I want your feed back, bad or good.