We like to keep things SIMPLE no menus no fuss no need to measure voltage , major increase in battery life compared to a BOOST type regulator , we did some more tests with AW rcr123 3.7 v 750 Mah batts and increase the battery life to 30% more then just the new regulator so 60 % increase in battery life
We color coded the wheel so there is red/yellow/green spots on the wheel for visual voltage settings
here are some better pictures