Cove Point Marine Transport (http://www.covepointmarineservices.com/) transported two boats together, Bebop and 090, to the 2002 NA's in CT. I'd use them again. Long enough to stow the masts alongside, so I can't help with single boat trailer. John White, who has done this a couple times, instructed us to remove and store windex and any mast mounted instruments. 'Sky' halyards and topping lift so the shackles are at the sheaves. Remove spreaders and shrouds. Leave upper wire attached to spreaders, and then loosely coil. Remove and coil backstay with bridle. Likewise forestay, bend just enough to fit below without breaking the tuff luff. Cover the shackles, sheaves, lights, gooseneck, halyard exits/blocks, and open mast base with saran wrap (any clear kitchen wrap, like Glad Wrap). Secure with packing tape. Drop halyard tails in a plastic garbage back and tape to the mast. Everything stays clean and ready to use with a couple flicks of a knife.