O.S.P. pro staff Yuki Minemura, is always on the podium in sight-fishing at local tournaments in the Kanto region of Japan. His money bait was the "SAIKORO Rubber" released by Fieldside. However, because it was handmade, it could not be mass-produced and was difficult to obtain, so not many anglers knew about the power of this lure. We want more anglers to experience the power of this lure. To solve this problem, we started joint development with O.S.P. It is not hard to imagine that the SAIKORO Rubber is effective against bass feeding on insects and shrimp, but it also attracts bass that prey on small fish. Why is that? This is because, despite its small silhouette, it generates a large water push to achieve the sight-fishing technique of instantaneous movement. To use the lure, fall it to the bass's line of sight with a no-sinker lure, and when the fish chases, twitch the lure to get the bass to bite it.

O.S.P WORKS SECONDARY is tuned to a setting that exceeds the performance of the original under certain conditions and usage. The SAIKORO Rubber MAXSALT is a high specific gravity model specialized for use in deeper ranges that cannot be exploited by the SAIKORO Rubber NONSALT when used with a no-sinker, or for approaches where a guarded hook is used to suspend it from a tree branch.