I fished it but it was years ago. One thing I've learned about CO trout. They will bite the exact things trout bite here in MO. Sometimes better. I don't know if it's just not popular out there but dragging and un-weighted bugger on a sinking linehas always been pretty deadly. If I were rigging my rod at home before seeing the water I would put on an egg and midge.
Good luck and post up a report with pictures please...You know, for all of us stuck here