Replacing my battery in a PA28-180E. I see alot of commentary on the Concorde batts (RG-35A or RG-35AXC. However before I drop 300 bucks on a battery, I wanted to see if anyone has any experience with the Gil 7035-28. The numbers seem a little bit better for the Gil and what I have read from just a couple sparse reviews seems to be highly positive. Any experience from folks here on the Gil 7035-28?