Yeah. $48 is killer! I'd go with more exhaust too. I'm tryin' to figger out how to mount a stack, but still use my locking ring, because my lid still doesn't fit quite right. I've been trying to bend the channel out some, and it seems to wanna work, but I don't have a good way of bending that channel. So I've barely moved it. Maybe I just need a different clamp. This one snaps with a long lever that flips back and forth across the top. And one more time, thanks to Ralph for donating the barrel to me. YAY RALPH!