Hello Daf.
I too have the Command Kit, I really enjoy it as well. I had to to a lot of tweaking to cut out crosstalk and some dropped hits, but I think I am on track with the kit now as I made adjustments, dapened the rack, and laid padding under a floor rug, and some felt/rubber feet, so it is playing great at the moment.
Does the new cymbal you added have a choke on it? If so does it work split off the Y-adaptor?
I added a cymbal as well and the choke would only work with a TRS tip . Using a TS plug only allowed the strike of the cymbal, not the choke.
Let me know. when you get time.
I always like to see what others are doing but not too many folks have the Command kit it seems as I have only seen one or two post from Command owners.