What is the point in risking the possibility of damage or loss of your AirCraft by using something you know is not good? Why not use a good firmware/app combo and let others take chances with their investments? In the meantime, go enjoy your Mavic.
I also do not fully understand the thought process with upgrading to a less stable version. When I say stable I mean from A-Z. Even if you have none of the half dozen issues you still have to contend with a huge NFZ database as well as reduced range. Is Fixed Wing and a few other rarely used features worth it?
I guess when the goggles are out we will see if they work with older firmware and aps. They mighty no