Fisher,
There are no water chestnuts in Lake Bomoseen, that time of the year early in the morning will be your best bet for both species. They troll for trout with lead core line with 10-12 feet of mono on the end, then they put a flasher rig on the end, tip with a large minnow. This symbolizes a ball of bait fish. Not really a bass fisherman but probably early they will be shallow and spinnerbaits and top water will work, later they probably move into the deeper weeds or structure. Your best bet would be to stop into Tom's Bait and Tackle in Bommoseen, RT 4A. They will steer you in the right direction.