I'm pretty sure they're roos. I'm sorry you were deceived, but there is little question about it. Those crest feathers are very pointy and thin and strandy.
Chickenzoo, I notice in most if not all SL Polish the hens always seem to have really pointy crest feathers.
I lived with the thought in my head that my Olive Oil was a boy until she was 4 and a half months old and wasn't showing that signature roo feathering. Not sure why, but SL are the hardest ones to tell.