Thanks for your submissions! We like the subtly of the S and the Shark -- but we do prefer it next to the brand name rather than standing alone (since we haven't launched the brand with logo yet, it would be hard to build up the name of the brand when the logo starts off as the S alone).
In submissions #68, #67, #66 and #65, the font weight for "academy" is a bit thin and seems to disappear the smaller the logo gets. It would also be harder to screen print or embroider. Could you possibly try with some heavier typefaces? And perhaps find a serif font to pair with the heavy sans-serif "shark" you already have?