Greetings, I recently installed a Patterson Transmission on my TerraTrike Path 8, and was very satisfied with the results. I posted my experience on some popular recumbent forums. If you get an escalated volume of questions from ‘bent and trike riders, I might be the cause! I will provide links to the specific threads below.
I would suggest that you make other chainring sizes available to work with IGH’s like the Alfine 11 combined with 20″ wheels. I believe this would make you very popular with the recumbent and folding bike crowd.