I installed the Odyssey battery in my 7GCBC and I am quite happy with the weight reductions and the
starting capability. This battery is in a Float Plane and this coming May will be the start of the third season installed in the aircraft. I have pictures of the install if you are interested. The picture was too large to add to this message. I did not move the battery to the front, just used original wiring etc. and it works just fine.
At this point, I am Happy