It's actually a great drive but setup was way to specific as to how they were used they were a victim of their own design. They require a very high x dim and a lot of rocker built into the running surface to feed the props. If it's a hull that is set up for it like the P29 Scarab then you,d have a pretty good boat.also keep in mind that if you damage a drive replacing it will be difficult and expensive but not impossible. I would not shy away from a boat with Blackhawks at all. Replacinging the drives with Bravos is an easy bolt on option but keep in mind the aforementioned hull mods that may be present because of the Blackhawk.
What are you looking at?