Better Shoe?

This.

And 2 Atk > 3 Dex in the long run. I would go for the stompers unless you have other areas in your equips that need upgrading.

Except -
1. Scrolling could go badly, equating a horrible reduction in the FS value (and not having the jump, which is more useful in lower levels than the attack), and will add even more cost than the already enormous difference between FS and SS.

2. SS can be resold when less useful to purchase FS

3. With saved money from not buying FS, he could buy a TON of nice bullets, still giving him the 2 attack boost.