Red flags went up when I first read this.
The Do-It mold makes an identical replica of the Senko, except it says "Do-It" where the original baits say "Senko" on the side. If it were me, and was going to sell baits and wanted to sell as close to a Senko as possible, I'd do a page explaining that the Do-It bait you're selling is an identical copy in every way shape and detail with Gary Yamamoto's blessing and agreement that the mold and subsequent baits are great as long as they are not in any way showing Senko on the baits. Actually, with the plastics available at Do-It and the weighting compound to make the baits sink at a comparable rate, you'll be able to make baits that are ten times as durable as Yamamoto's product and that in and of itself is one heck of a sales item.