This is a bit off topic but hopefully I can get advise on this
I currently have three quads including a 400mm mikropter which is still my most reliable platform but I am really happy with my arduquads and I am likely not to continue the mikropter path any longer.
My question is: If I just want to lift a gopro for HD video and a max 2200-3000 mah lipo. what is the most inherently stable multicopter. is it a small frame in the 300-400mm size and light as possible, or is it a larger frame in the 500-600mm or more. Likewise how does prop size influence the inherent stability or controlability of the quad by ardu. ie is a smaller prop lower mass better or a larger prop on a larger frame?
do hexas and octos really add anything for stability or is it just for extra weight carrying.
My goal is to produce the smoothest flight characteristics and wonder what frame size is ideal