I just noticed today that the 3000 and 4000 series units no longer appear on the website product listing, or in the price list. Presumably, they are being discontinued. While this isn't unexpected, and I certainly understand the business and technical cases for doing so, two questions remain...
- Will "the list" of outstanding developments still be pursued for these units? or at least, features developed/refined for the 5000 units backported to the 4000 series, if the hardware will support it? Hopefully, the remaining known bugs will be fixed (like the display issue where the course and bearing needles disappear when viewing the VP-X page) before development is discontinued.

And, selfishly:
- When will production end completely for the units, if it hasn't already? I only ask because I have a big hole in my panel where a second 4500 was supposed to go, pending arrival of more cash. My understanding is that the 5500 is an entirely different size and mounting arrangement.

Thanks & all best ~