Along with the modification to increase the alternator’s output, we opted to modify the stock voltage regulator with a solid state conversion from Corvette Central.

The NSIC2020BT3G, NSIC2030BT3G, NSIC2050BT3G have steady state current (IRegSS) capability of 20 mA, 30 mA and 50 mA, respectively. The devices turn on immediately and reach 45 percent regulation ...

Note that a form C contact is used, so the form A (normally open contact) specification does not apply. I believe (guess) that it is good for at least 400,000 operations in the 6A solar charge ...