I just crawled out of my cave and discovered that these kits are starting to hit the street. I'll be really interested in your results, Dan! This sounds like a great kit for someone with a commute like mine that involves lots of highway miles and relatively little need for EV. 10-12A should be enough to for sustained WS, which is something that I currently avoid like the plague in favor of DWL and SHM. Personally, I would limit DoD to 20% and limit charging to 90% (or even 85%). I have a ThinkPad for work and this strategy has resulted in a battery that still provides 100% capacity after 18 months. Since that cuts down on available energy, I imagine a savvy user would learn to engage the aux pack only when it is of the greatest value.