Temporarily installed the Plane Power FS1-14B Backup Alternator. Vertical Power recommends the "B" and installing a switch to select ALT 1 or ALT 2. That is exactly what I did. I still need to secure the runs in there final locations.
Ran a 10ga wire with an inline 30amp fuse to the output side of the Master Solenoid. Connected the ALT 2 switch and entergized the coil, VP-X pro showed a 3.5 amp draw. This checks out within Plane Power specs.