Has any one ran a Alternator with a internal voltage regulator?

The only thing i heard about 1 wire setups was that they require to be up to a certain RPMbefore they start charging unlike ign excited setups. Again like bob posted, make your decision based on multiple ideas, and your application. I went 50A but prob coulda gotten away with the stock 12GA wiring, and a bulkhead bypass if i went with a denso mini 35Amp alt. I will be using all led lighting except GE nighthawk halogens. No elect fan as shown by pic. I think stock alt on this car was 20Amp. I plan on a nice 6 speaker stereo no external boom amp, so 50amp might be too much. At the time i bought it, i was contemplating elect fans.