Took it out to Elsinore Saturday but could not open her up due to too many Leo's on the lake. We were able to reach 65 mph without drawing to much attention but definitely had more throttle left. I was really impressed with the mid range of this motor, we went from 40 mph to 60 mph within a couple seconds and you could actually feel the acceleration. The DTS controls were effortless and felt so precise even has a nice detent when going into neutral. I was a sceptic about DTS at first but now it's all I will use. I think the 520 package is the best value Mercury has ever offered, the next two builds are also getting 520's as well