I used to use a 17 ft. almun. canoe with a electrical mini kota motor for trolling with a big deep cycle battery, that give me great results when trolling. I had a low budget Eagle fish finder on the canoe, I had the skimmer attached to the trolling motor. I would use the fish finder to find out how deep the big ones where hanging out in the water and put either a deep runner or a shadow runner to pass over the heads of the fish, Rapala deep runners (shad rap) gave me the best results, I used these lures with a shad attractent with amino acids. Then I would troll at speed 3 on my 27 pound thrust mini kota around all the hot spots in the lake. I had to fish rod holders on each side of the canoe and trolled the lures about 100 ft behind the canoe.
Even when every body else fishing on the lake hadn't caught anything all day long, I would always fill a 5 gallon bucket with fish using this method with my canoe.
Sadly I sold my canoe because I got married again and needed a bigger boat for the family. But I still use this method from time to time on my 12 foot skiff, but the results were better with the canoe I guess since the canoe was smaller/thinner, made less noise, the fish noticed it less.
Eddie