voltage regulator

I redid the whole charging circuit, and rid myself of the bothersome amp meter. I rewired using heavy gauge wire, bypassed the bulkhead connector, famous for failure. I also installed several new grounds, from the block to firewall and from the battery negative post to radiator core support. All that went a long way in improving the charging circuit. I wired in the regulator and have it mount on the fender near the alternator, I even ran a separate ground wire from the volt regulator to ensure I always have a good ground. The alternator is of the two field type and it is also grounded. I have had the charging circuit set up like this for several years and have had no problems what so ever. The current round of shitty regulators has been a recent problem. This is why I posed the question, is there a heavy duty regulator, cause all the part store regulators look cheaply made, and I wonder if the quality is just not there anymore or am I just overlooking another cause to my dilemma.