Thanks for the quick reply Mikhail. My existing quadrants use potentiometers and are starting to throw transient signals, which interfere with my other controllers. Unfortunately, there are few alternatives on the market. They are mostly entry level or slightly above, so little better than what I have. There is the one I showed you, which is very high quality, but VERY expensive.
If you were to produce one I would definitely buy it, and I think there would be considerable interest from others due to the lack of an affordable quality product in the market. The key features for me are 6 levers, preferably in pairs, using contactless sensors. The special functions at the lower end of the throw are nice, but not necessary (perhaps just a detente?). Some buttons would also be nice (but not necessary), but not switches as MSFS does not handle switches well. Maybe a Flaps lever and Gear lever? .... just a thought. If the design would accommodate one of your trimmer boxes that would be ideal, and I would buy one of those too.
I understand the design and production of this unit would take some time, but given the proven quality of your products I am willing to wait. I am quite sure you will find interest from others in this type of controller. Word of mouth gets around, and you are becoming widely known