Depends!
On a NEW boat or a painted boat, the surface is non-absorbent and you can just use the Superglaze. On older porous gelcoat the Superwax is best over a thin sealing coat of Silkenseal (stops it from soaking in and helps it cure faster). However if you have a good solid superwaxed surface you can shine it up quickly and make it more stain-resistant by wiping over with a coat of Superglaze. There are now several people who can attest to this (you can go to the chandlery and look up testimonials under kits for older boats. Thanks, and by the way, I think I owe you an e-mail! Jim W
