Big hook/small fly
We're somewhat the same way here on the Rogue. Lots of guys use large versions of a given fly; and with success. I've found that (summer or winter) that a 'smaller' sized fly (assuming our normal clear water) is still the best. But you can tie a 'size 6' fly on a #1 or #2 hook if the bench so moves you.
Do have some larger flys (hook wise) but 99% of the time all they're doing is filling up my boxes and adding weight to my vest.