Running a reo grand with the rm2. First rm2 died after couple years use and kept giving me shorts so picked up a new one and enlarged the airhole. Also running the derringer with the p67 and was happy with it except it took a bit fine tuning and realized I wasn't doing enough maintenance on the connection points. Had heard of the cyclone back in the day and might end up giving that a try as I do like the small chambers more it seems. Going to have to read up on that berserker too.
I was a huge fan of the cyclone/hornet/diva size for many years. They are a bit too small and restrictive for me now.
I've been using CAM Mantav2s for a few years on my SL/LP grand. I oversquonk and the mantas have been very forgiving. The derringers, not so much, so we parted ways.
The berserker may get an audition soon. It ticks most of the boxes, but I just know I will lose/break/melt all those little tubes and then what will I do?
Good luck in your search.
Cheers
I