Skip and Grant,

Regarding the issue of your alternators not coming up on start, consider posting your experiences on the aeroelectric list (aeroelectric-list@matronics.com).  Readers of that list (builders of RVs, Velocities, Lancairs, Cozys, ... and on and on) have thousands of hours of experience with B&C alternators and regulators, as they're called out in several of the electrical architectures proposed by Bob Nuckolls who started the list.  I will be flying my ES soon and live in a very damp climate (DC area) which is currently cold.  You've raised my curiosity about this as well.