You can solo the HObie 16 in over 12, you just have to practice. If I can handle my 5.2 alone in 20 you can handle a hobie 16 alone.
As for the righting, all the hobies I have been on have been stubborn to right! My 14 was hell to right, but i can get my 5.2 back upright on my own easily.

Once you go cat you never go back! Nacra 5.2 (Elsies)#1499, running an inter17 spin!