After doing a little more digging on this site, I have found a few more threads with a lot of info on this topic. It seems a good way to go might be to upgrade to the HP starter and use the extra terminal on the starter solenoid to bypass the ballast resistor. I am two years into a rotisserie restoration of my 69 coupe, and have referred this site many times for the wealth of information it contains. Many thanks to the experienced users on this site.