[Hib Halverson]

I used both, Optima and Odyssey.

I think the Odyssey is a better choice. Physically, because its square rather than a six-pack or round cells, it's got more room for plates.

My experience with an Optima was that it was not very tolerant of deep-cycles. In fact, two deep cycles and the one I had could not be charged.

Currently I have an Odyssey 75 PC1230 in my ZR1. I use that say Odyssey size in both my Camaro and my Blazer. I use the bigger 1500 in my 71 Vette and I use a smaller Odyssey in the '12 Z06. I still have a Delco in my '04 Z06.

Sears sells some Odysseys in gray cases and under the Diehard Platinum name.