This one has potential for me. I'd love to see some variations on it. I really like the gray Agile.
The only thing I didn't like when I first saw it was that it reminded me of the star trek symbol. I'm not sure how to fix that without completely changing the design.
If it helps, I really like your PetMax, Pure Spa, and ProBioSil type logos. Not that I'm expecting any of those type would work for me, but they definitely stand out to me.