Our tacked bottom decks include everything you need to aluminum bottom deck swap your round nose SuperJet — besides a welder! Whether you want to weld it yourself, hire a shop, or bribe a welder friend, this kit is for you! Once you fully weld the main hull our kit includes everything you need to jig in your firewall and motor mounts for perfect concentricity. Our instructional videos walk you through every step of the swap, including re-foaming your ski.