ok heres the deal, i have a friend that competes in streetspl,. he started the season off with 4 SA 12s on 2 M3as and was doing great, then he stepped up to 4 soundlab 18's on 4 M3as and was whopping ass. the new season starts in january and hes looking to rebuild, he asked me to find him 9 SA 12s but im thinking to suade him into 9 Gcons, the thing is, he knows the SA12's he ran them before, and i have too, great subs, but the Gcon is new, but it priced around the same, and its a comparable woofer on paper, im looking for someone that has used both woofers, i dont want to talk this guy into getting something he may not be happy with then look at me like im an asshole., thanks guys.