If I had only one fly, I'd make it an olive flashabugger! It will catch fish when nothing else will.

Works everywhere.

This is a great mayfly pattern. I use it in smaller sizes (20 & 22) for finicky Trout. It seems to be well made. Doesn’t quickly unravel.

I’m surprised this does not float better bc it is almost all foam. Sits low in the water. It needs a parachute to make it more visible.

One of my most float-able dry flies. I use this often to suspend dropper(s). And everything from Grayling to Trout like it.