I have never fish this particular lake but I have fished a dozen others in the general area. "Most" bass move off the banks in summer sand relate to deeper weeds. Start in 5-10' of water and move deeper if need be. They do not generally relate to the banks. Any humps, especially ones you can find on your own and are not easily seen with a topo map are usually gold. Light jigs and carolina rigs. Swimbaits definitly have their place as well. Find DEEP cabbage and throw the swimbaits over the tops especially in the mornings. Fish for LM and not SM, Most people think SM when they think Maine but the LM fishing is amazing.
Congrats on the win! Even though it's bass fishing 101, Rich can give some good advice from time to time