I troll with my Honda 90 on my 21' aluminum workboat exclusively and love it! I run a lower pitch prop and can easily putt along at 1.5 knots @ 550 rpm. Cannot hear the engine running and uses basically no fuel. I also rigged a secondary throttle cable with a fine-tune knob (instead of a lever) that allows me to tweak the rpm up or down in 10 rpm increments. I love not having to own or mess with a kicker motor.