Nick,
To quote a speechless Walter Cronkite when Armstrong stepped on the moon...
".....Boy,...just look at those pictures!....."
I gotta tell you though, your scaring me a bit with those fittings!
I've noted that Sopwith seemed to draw these several ways, 1d early on in my case, then 2d for the Pup. How are yours!
Absolutely magnificent Nick, I'm truly inspired to plod on!