I did a little playing around with the mute groups today. I was able to get a crash with choke set-up on Perc4 input. A couple things to note:
• you must have a sound of some kind set up on the switch, none won't work.
• that sound must be set to at least 1 on the level (LVL), if less than 1 (meaning OFF) it won't work.
• be sure to set the curve to EXP4 on the switch zone. This is to make sure you don't here the sound. It's there, you just can't hear it.
• set the sensitivity to 00. Again to keep you from hearing the sound on the switch.
You now have a crash with choke. One problem. The choke switch Alesis uses on these cymbals is very sensitive. If you hit the edge of your cymbal too hard you will trip the switch first making it sound as if the crash is not working. Make sure you only hit the bow of the crash and you should be fine.
Because of this test, I now understand why crash #1 is hard coded for a single zone crash with choke. That input must be running some kind of timing system to know when the switch closes, is it a quick close from hitting the cymbal, if so, it knows not to choke out the sound. If it is a longer close signal like when you grab the cymbal, then it chokes the cymbal.
Unfortunately, that little program is hard coded to the crash#1 and ride cymbal inputs only. At least from what I can tell.
I would sure love to see an update to the OS for that.