I have had excellent results with the the Dyna-Batt. It sat for six months before being installed and has been in the car for over a year now and has sat for four months at a time without cranking. It starts with power and at times has been called on to do some repeated cranking. I just last month set it up on the battery minder.
I especially found the small size an asset in helping to de-clutter the engine compartment.
Website for Dyna-Batt..http://www.performancedistributors.com/batteries.htm
My set: