Does anyone have much experience with wearing a speedsuit for a non-wetsuit swim?

I'm doing IM Cozumel this fall and the swim will not be wetsuit legal. Xterra is having a great sale on speedsuits right now and I'm debating the usefulness of one.

It seems like it would be useful over the course of a 2.4 mile swim but who know... maybe I should just learn how to swim instead?

Travis, after trying on one of those LZR suits, they run very tight. The best bet is to try one on at a swim shop to see how it fits. I didn't end up buying one, but if you do wear one make sure you only wear it for the swim. I felt like that thing would rip is I thought about biking or running in it. It wouldn't be a good sight at an IM race.