Hey George try a transpo adjustable regulator made in the U.S. Flordia i think , and they work good it's all i use now and never had a failure yet close to 3 years now on my truck .
This is interesting with that Transpo Regulator, I ended up using this Transpo 1 wire conversion kit for the 60 amp Motocraft Alternator that I ended up using.
The onboard transpo regulator is adjustable too, but did not have to screw with it. 14.3 volts consistence on the output.
Thanks for bringing that up, looks like all the Parts Store Regulators are crap.