i like to swing streamers alot. i new i was low on TC streamers so i tied up a few the night before i was going out. i got them epoxied and it was getting late, so off to sleep i went. early the next morning i headed out.
i started the day hitting some browns with a squirrel tail streamer and after it got chewed up, i switched to the TC that i tied the night before. seemed like the fishing slowed up a bit untill i lost my fly to a log jamb. went back in the fly box and saw that i never painted the eyes on so i used one of the others that had the eyes and i was right back into the fish...
it turned out to be one of those days that goes into the vault. it was raining off and on all day, hard at times. (keeps them fair weather spinning guys at home) the fish were where they should have been. the casting was right on. and i must have landed 30 fish that day. i didn't get back to the truck untill about 3:30 in the afternoon.

so yes, i think the eyes do make a difference (at least i did that day)

Don