.22 vs .25 hatsan blitz

I don't have the the big bottle on the Blitz yet. I do have the 700cc 4500psi carbon bottle with Altaros regulator on my Barrage though. With reg set at 150 bar I get 130 shots before it drops off the regulator. I have the bottle for the Blitz but haven't put it on yet because still undecided about installing a regulator. I never use full auto but may want too. What happens then if its regulated?
 
I am in patiently waiting for my Blitz in .22. The brown truck O happiness is due by 7 tomorrow. I'm certain a LOT of full auto is on the menu here, thus the .22 is the logical choice. Hard to beat a penny and a half a round from Wally for decent lead, so far my Beeman 2028 likes the Crosman CPHP great. I've been dreaming of full auto in a .22 for a very long time. I am primed rested and ready! Had not found this thread in my extensive research, the thread just reinforced my choice well. The .30 was very tempting, but not at higher than .22 PB cost per round.
 
Good luck with the bad trigger.

H&N Baracuda Power .22 pellets are doing the best in mine Hatsan Semi Auto.
I shoot a small frame double action .22 revolver double action, note I did NOT say I shoot it well double action. I've fluffed and buffed it, prior it was impossible. It's a geometry problem with that particular gun type. It does build trigger finger muscles. My son spends his days hammering a keyboard for a living, he can shoot it pretty well thanks to strong fingers. Thanks for the tip on pellets, I shall order some up, if I don't have some already, I ordered a bunch of H+N lately and the quality is great, I like the RWS hobby flat points in my 2028 very accurate. The Crosman CPHP's seem the best for slingin lead full auto.