For whites in the reservoirs a size 12-14 wireworm tipped with a maggot produces. My favorite "lure" is a size 12 gold ribbed hare ears nymph with a single maggot hanging off the back. Tie it to 4-6 lb line then have a small split shot 1 foot up the line to get it down. Jig lightly, use small bobber or strike indicator as the hits aren't always hard. I've also caught them by fishing wireworms on a pickerel rig instead of bait hooks. Can tip with maggots if needed. Pretty easy to catch if you can find them. I've already eaten enough whitefish this year, not really considering going for them unless a friend wants some for the smoker. Good luck to you and congrats on the successful outing.