Yes, the boats require some weight to be added to the front to get the c.g. right depending on what power option you go with. Most any tunnel will require the c.g. to be adjusted depending on how you set up the boat. I have run theis boat with 7.5 stock and mod, and 11cc stock all three required different amounts of weight on the front. Being epoxy the boat was a pound lighter than the polyester Lee it replaced. I held the NAMBA straight away record for 7.5 stock a few years ago with this boat and ran it for several years as a mod with great results.
Mark