Spark at coil and distributor but no spark after plugs installed and crank at key

Dana,
Yes exactly. If you connect to the coil pos terminal as in fig 3, then the ignitor does not get the full 12v. Orrrrrrrrr. If you connect to a switched 12v source, then the ignitor does get the full 12v.
If the ignitor has been connected as in the first scenario, this is probably the problem.