ok, bit the bullet and just replaced the alternator with OEM brand new replacement, thinking the only source of high voltage had to be coming from an...
In my 90 hr FX2 with 363i FP, while flying yesterday got borderline high voltage on battery 2 ( ignition backup ) up to 15.0 to 15.1 volts in flight...
Thanks to everyone on here who helped me get the cub running in time for my weekend trip. It was a great time, couldn't have done it without y'all's...