Hi
I use medium oval french for ribbing on most of my wets, as those wild Brownies can be like Piranha
However i use opal mirage on my wet hopper pattern it proved a real killer of wild brownies last season, rainbows loved it too. I tend to fish it on the point slow fig 8 ...........arm wrenching action follows tie a few up and see
Hook: B175 size 12 (barb crushed)
Thead: Uni 8/0 Black
Rib: Opal mirage (med)
Body: Black seals fur
Hackle: Cock hackle Black
Legs: Black phesant fibres (x3 each side tied in underneath)
One of my most successful brown trout flys all season was the Clan Chief, however i like to tie mine bushy and use ultra soft rook/crow hackle for the head