Hey Kiwi,
Those are some big perch look fun too catch, i would be willing to bet anything that one of the best things you could do is look aroung the lake for the minnows they eat. See waht color they are and find a plastic worm in a similar color and use that. For those fish I would use a 3'' lure nose hooked with a size 1 hook and fish it fast when it is warm out try this. Hope I helped TAYLOR
PS try a zoom finess worm it is the same as a trick worm but a few inches smaller better for the size of those perch
