I have caught many trout on dry flies down to size 24 and 26. And only a few were trout over 18 to 20 inches. I had one of the best few hours of dry fly fishing of my entire fishing life, on the San Juan River one autumn afternoon, on a size 24 blue winged olive and 7 X tippet.My curiosity got the best of me and wanted to ask the board what your biggest catches were on the smallest flies. Photo's would be great but love a good fishing story if you have a tale to tell.
This reminded me of this: