Thanks, it works great. I have found no need to weld them together. The sheared edges fit together tightly and by the time I got a couple cooks of dripping goodness, they sealed right up. When I want to separate them now, it takes a little screw driver action.
Drilling holes in the pipe would seem to defeat the reverse flow mod; when I've seen pipe with holes it was for a traditional offset stickburner in lieu of tuning plates, not reverse flow.
Weber 26.75 OTG w/CI grates & SJ/WSM Mini
Home built 24"x72" reverse flow stick burner trailer with 18"x44" grill w/CI grates and upright SS gas oven/smoker.
Home built 48" fire pit with a 30"x30" Santa Maria style ranch grill.
Home built lump charcoal retort, iGrill & a bunch of other cooking toys.