I was at Rocky Ford a couple weeks back, fish were selective as usual. Lost 4, landed one, all 6lb or bigger. Olive scuds were the ticket (nothing new there), size 16, but i did catch one on a red wire bodied chironomid pattern i came up with (had a secret ingredient to it...)
It was fun to watch the fish "circle my red chirono like sharks" when they first saw it...guess it was sort of a 'change up'.
make the trip, you'll catch fish, be patient and sneaky...