All in all I'd say you had a pretty darn good haul. Nice going. As uncomfortable as I feel giving some pointers to a fellow such as yourself I'll throw out there that a lot of the times with whitefish a smaller more finesse presentation will work out. A wireworm or tiny teardrop jig would be an example but don't be afraid to dig into your fly fishing box for some chironimid patterns on a light line. Well with that said who needs wireworms .
I think it depends on the lake and day you're fishing. Our buddy fishing with us was using the wire worms and hardly seeing any fish and getting no strikes the majority of the day using small wire worms like you say. But my dad and I actually had about 7 each come through and inhale our jigs. He just missed them all. Out buddy started having action once he put on a kastmaster. The jaw jackers were set up right beside us all day with wire worms and chironomids and didn't even get touched.