I once had a go with a Brocock Aim-X in a shop,the man behind the counter took it down from the wall and cocked it then handed it to me with no pellet in,i pointed it at the floor and pulled the trigger, at which point i commented that the twang was a bit harsh for a modern gun,that's when i told it was a pre-charged pistol not a springer
springer go for HW 45
pcp go for twinmaster top
co2 go for s&w 6" (revolver)
sold my twinmaster because trigger was toooo heavy for competition shooting and cannot be adjusted, but its still a fantastic all-rounder(which is the name of top minus wooden grip)
still got the HW 45 & S&W