Finally got to use mine, all day long. Pump arm felt kinda far away, but i think the tank setup is just too long. May need a rail/asa combo instead of a direct mount, scoot the tank forward a bit. Briefly considered shortening the pump handle, but i wasn't gripping near the front of it, so that wouldn't help. I think i just need to get Stretch Armstrong arms.
Didn't notice any farting or velocity issues - field limit was 275, and i was shooting around 270. Another mcb member, The Inflicted, asked to shoot it, tried to auto-trigger it, and that didn't work out well for him, lol.