Thanks Mike for the concise write-up!
Vera Lynn has your Pingel and no I didn't have to enlarge the tank hole. Cinnamon Girl's pingel (purchased elsewhere) installation required enlarging the tank hole. Those are the differences, er, well there is one more. Yours is aluminum the other is chrome...But yours was purchased WAY back, so I don't know if purchasing one now would see a chrome one shipped!
I concur that "The ergonomics of Pingel's smooth acting horizontally swinging lever is far more intuitive than the rotary dial on the stock petcock". Switching to reserve while in motion is a breeze. Halfway tween forward is aft is a no brainer especially if the pingel is orientated in such a way that a halfway swing places the lever 90ยบ to the bike. 99 times out of 100 I'll swing the lever halfway before filling up. Funny how Vera Lynn gives some warning before she runs out of gas as she'll run skinny right before running dry and CG will just run dry with no warning.
Your tip about the letting the sealant fully dry reminds me of when I patch a bicycle tube in a rush. Yep, the freaking patch will leak.