Very nice article. Short n' sweet, and very descriptive. I've not tried a double rig with a dropper knot. I'll have to do that.
And, I've got a variation you can add if you wish.
I add a BB size split shot between a wet fly or streamer, and a bobber/float. I put the shot onto the line, just a bit more than 1/2 way towards the fly (so it's a bit closer to the fly than to the float). It serves two purposes: it drops the wet fly or streamer down a bit; plus it keeps the line from wrapping around itself while casting. ?
I use this rig on Willamette Valley and Coastal Lakes all the time and with great success. I use Woolly Buggers and Leaches. Mostly Olive Green, Black, or Brown. This rig has caught a LOT of fish!
And, I've got a purple bugger, shot & float rigged up right now, for an outing tomorrow morning. It's a first attempt with purple. Will be using it on a canal and small lake/pond for trout and steelies, at o'dark thirty tomorrow!
Welcome to OFF, and thanks for the article.
TD