Just a tip:

Tidus is AWESOME if instead of continuing onto Yuna's sphere grid, you use some kind of teleporting sphere to move him onto the end of Auron's and work backwards to grab all of those Strength +4s. Not only is he getting several hits in, but they're just as good if not better than Auron's. Auron's speed stat is typically the lowest, which is why he moves on to Tidus's after he's done.