> I gather the technological issue was a design that was over-complex for =
> the degree of precision possible for production at that time.

 From the reading that I've done on the subject, it's more like the
machine was over-complex in that it had too many moving parts. When the
number of moving parts goes up, the reliability goes down. This is what
did the machine "in" - as exhibited during the tests against the
Linotype machine in a production environment.

Tony V.