So... I was noticing that above it reads as:
STR+4
Latent Effect: Attack+10
Store TP+8
Looked it up on AH, and the Store TP isn't part of its latent affect.
STR+4
Store TP+8
Latent Effect: Attack+10
When you use WS your TP drops to 0, and the trigger is having 100%TP. Though you instantly lose the atk+ when you use WS it means little. You're food could make up for the lost atk, but its your STR that affects your WS power. I'd choose this over O.Kote anytime. Plus it's only going for 40k on Siren~