Well I'm hoping to get a good start on my UDS build this weekend. Got a barrel and some of my parts. I'll update more once I get started. At the very least I'd like to get some holes drilled and the liner off this weekend.
4 3/4 inch isnt enoughYou can get by with (3) 1". But anything less is not enough. If you're running 3/4" then you are going to need a minimum of 4.