i was supprised how little smoke i had to be honest
probably taken the same effort, but the 30mm doesnt have a sleeve againt the arm, and i wanted to do as little damage to the arms as possible.
havnt decided which ones to go for yet, was bored and had a spare hour so thought i'd strip them both down anyway.
considering how much effort it took to remove the bush, and that i'd be looking at uprated bushes, im still not sorn off the idea of using mk2 arms. I'll see what's about and how cheap/easy they are to get before deciding though