Very helpful indeed. I know I benefited from it and I turn down Swallowtails and deep butt crack Fish every time I get a chance. Up here there are a couple of guys that go giddy when someone comes to them with a Fish order. So I usually turn 'em down and send a potential customer down the road. I should charge a finders fee. Thanks. I’m sure lots of people benefited from your thread. Lowel
Chris, thanks so much for posting this, excellent step-by-step guide. My first attempt at this was a bit of a bodge. If it’s not too late, if detailed pics of how this is glassed could also be added, how the cloth is folded over etc. that would be superb! Cheers 
Hopefully somebody can chime in with detailed pics of how-to glass a swallow tail… I don’t yet have a process that I am confident in… I just kinda stumble my way through it…
Nice work ChrisP fwiw that’s pretty close to how this backyard hack does them.
I didn’t see it pointed out, so I’ll mention what I think is an important point in the process ---- do it last. Don’t cut the swallow until you’re pretty much done shaping the board.
Right on Bud!
And yes, I agree, do it LAST!
It’s the last thing I do before glassing
Also, mark the fins before cutting the swallow tail. Easier to have that endpoint of the stringer at the tail block intact to measure from.