Need Help With Cymbal Choking

[dmitri]

On the Edge input you may want to set Gain to 5-7. This way Threshold window for working choking will be wider and choking will be more reliable. E.g.
with Gain 0, the Thrshold window may be 8-12, but with Gain 6 the Threshold window may be 12-30 with best value around 21 (values here are just for example and for your setup the values may differ slightly).