He can understand the puzzled look he gets, but Tidus waits, nodding as Taiki explains, and it all sounds like what Saku told him too.

"Have you ever tried doing that with anything we've across on the missions? Or...searched for anything," he includes. His hands wave some as he speaks. "You know, to keep you protected. Would it work, you think? I was just wondering."

Him, as opposed to both him and Saku, but it was better to put this all on him than the pair. They agreed to that.