Voltage regulator upgrade? Keep frying voltage regulators with swap

Make sure the case of the alternator is metal to metal with the front cover. I just took mine to my alternator guy to disassemble and blast so I could powder coat the case and he said to grind it back off where it mates with the front cover. That goes for the front cover too. He also said the regulator my car came with would be totally fine to use with it.