I've recently been using Harribel's release; and I've gotta say it's a bit odd. I understand Water Explosion being based off of Rei, otherwise due to the attack boost, it'd be WAY op'd, but why exactly is La Gota based on rei? I think, considering the sword is strength-based, La Gota should be changed.
However, I spotted another problem. It says "You get better at maintaining your shikai" when you use La Gota or Water Wave. I think these bugs should probably be corrected.