From Dun to Emerger...?

No we're not going back and reversing natural history... By 'Dun to Emerger' I mean the tying progression. The original CDC Dun gave rise to an emerger pattern tied in the same fashion:


Hook: Varivas 2200BL-B #20
Thread: Hends Synton, brown
Body: Orvis Spectrablend, cream
Wing: CDC, olive

~Dave