You just caught me at the right time. I've installed lots of these Dyna-s ignitions. One thing you need to watch is that the flyweight holes are not wollered out. When they get loose and rub on the back of the timing plate it creates steel dust. The dust gathers on the trigger magnet and will burn out the module. That's the only failures I've had from these. I've had customers doing self installs that wired them up wrong and fried the module, though.
Lately, I've been using the Mallory optical ignitions. They are less expensive than the Dyna-S and I think they kick start easier.