I have been riding 45's forever, I built my first from basket case in 1979.
My latest 48 WL was giving me such a hard time tuning and riding that I decided to try electronic with auto advance. Wow, I am impressed. This ignition knows 45 motors very well. Once you get it installed and set up proper no adjustments are needed. It keeps the spark advance correct. It is a pleasure starting and has wonderful power at every RPM. The instructions are inadequate though. They should have some more detailed instructions with more pictures. I am pretty good mechanic and electronic technician but had to fumble through the retrofit. The struggle was well worth it. I am buying 2 more, one for my 42WLA and one for my 51G