I'm trying to decide on a 45, 9mm, or a 22 can. The 22 is supposed to be the cheapest and the most quiet but i feel it lacks the power i want. I wish you could try them out before you buy. The 45 would be nice because the ammo is mostly subsonic already and the 9 would be good because it's cheaper to shoot and inalready have a threaded 9mm glock. What do you guys think?