15:

on that note from Sage, Ill help ya out. I fish and tie BWO alot (not on the Clinch), so from one young fisherman to another here we go.

Hook- TMC 100 (size to match the hatch; 16 all around)
Thread- Uni 6/0 black
Tail- Dun hackle fibers (Wapsi makes some "mayfly tails" I use those (split) in dark dun on mine but classic style BWO will work just fine)
Body- Superfine BWO dubbing
Wings- Dun hackle tips
Hackle- Dun or Dark Dun

There you go; if you have any questions just ask!

MTN_TRT
"LIFE IS GOOD"