...lol....The EMAD on the 20" kick is the way to go. EMAD II's are too much control for a 20". You did good on the kick. I bet that joka sounds ferocious.
I gotta disagree on that one. It depends on the drum and how it's tuned. I had one on my DW 18"x20" and it did the job. I also put one on my cousin's Export 20". i tried a few different tunings. It didn't choke the drums at all. Just my experiences......