[Accelo]

It likely works better than the GM design. Of course, the electronics "back then" would have been expensive. I was around then the chief complaints, about GM transmissions, was the lock up timing. The pathetic power levels and early lock up, to keep mileage up, were additional issues that GM had to deal with. You may have a commercial product when you are finished. However, I do know many a transmission transplant that just ignores the lock-up converter. They just run them "old school." I suspect the marketing would be the difficult part.
Kudos to you for staying on this project.