wa8yxm,
I posted this earlier today. Thanks for your reply.
OK, I tested them again today. No problems. I let the A/C do it's own thing through 4 cycles and all is good. I started with 125.6 volts, the fan kicked on and then the compressor, initially dropping to 115 and leveling out to 120.4 or so. When the A/C kicked off on normal stop, the voltage didn't spike, it returned to normal.
Only thing I can think of, and I don't know if I did this or not; or if it would affect the situation. I made a point of it today to hook up the parallel cables before I started the generators. I can't really say if I did so the other day or not. Otherwise, set-up and run conditions were the same.
I'll keep y'all updated, and thanks for the help. One question though, in y'all's experience, is there a power management system that would boost the voltage if I find low voltage at a park, and would also act as a surge protector, or do I need separate devices?