Looking at the Hawker Odyssey and Hawker Genesis batteries, I couldn't see an obvious difference, so I called and asked. They said the Odyssey is slightly better for high vibration, but that was about it.

I got the feeling I didn't get the entire answer... Anyone know any better?

 

We are an Odyssey dealer and they were telling you the truth. Just another tidbit the Odyssey 1200 just came down in price http://www.kenskustomchassis.com is selling it for 149.95