"The Solar30 adjustable voltage is for both Absorption and Float--it is the same voltage. The batts get up to that and then stay there till dark. Simple! If you want to drop in voltage at some point before dark you have to do it manually at the time and then put it back up for morning."
In that case, I'm actually hoping to zone in on a current that will bring the bank up to the setpoint, late in the day. I could adjust it seasonally by raising and lowering the setpoint, as well as running either one, or two panels. And I'll likely add an mppt for winter use. I'm shootin' for max flex, as well as set-it and forget-it.