Hi K.J. To joe and i rigid frames are the go, in fact we added extra fixings (2 to 4 per yak) to the rear yolk as we found the motor in the up position was putting strain on the ply deck, even with reinforcement pads.
The main purpose's in joining the two together were stability, safety, We pick our days and will not venture out unless we are satisfied that conditions suit .
You are so right about two guys working together ,when landing a fish we can hand the rod to each other to use the landing net ,etc etc .
Thanks for your interest , and i would like to take this opportunity to wish every one a very safe and a very happy Christmas
Kind regards Ray