Ok. It was 20. Not 22 (finally got around to measuring my rod).
....the bug I was actually fishing with was similar, but had a white Zelon and Pearl Ice Dub wing, so it's easier to see. They're up to Big Sky on the Gallatin. Done on the Big Hole. Should be popping yesterday or today on the Stone. Are they already above Ennis on the Mad? Mussbe by now.