Ultimate shoulder rides

Hi all

This forum is dedicated to SHOULDER riding, which means to me that "piggy-back" and "on all fours" are banned.

Why do we differentiate these three types of riding ?? And why do we love SR much more tha the two other riding modes ??

It seems to me that, when compared with piggy back and on all fours, SR has two very specific dimensions : It may last LONGER, and, beyond being pleasurable, it may be USEFUL .... It lasts longer because the mount walks, quite naturally, on his two legs < which is the way he was designed for walking >, and he doesn't have to hold his rider with is arms, an effort that arms muscles cannot sustain very long.... And it may be useful in two ways : Eiher by providing the rider with a comfortable high CHAIR which will allow Her to watch a parade, a concert, or have a view from the top without any effort ... Or also by providing the rider with an efficient TRANSPORTATION mean ....
( Personally, I love it most when the rides I offer are both pleasurable and useful ...).

But if duration and usefulness are, beyond pleasure of course, the two reasons why SR is for us the best of the best ways of riding a human mount, then I know one which is even better on these two parameters ... I'll try and send a drawing which shows how a normal man, I believe, can be made as strong as, probably, a donkey, and able to offer  longer lasting rides than when walking on his two legs... ( I apologize in advance for the very poor quality of that drawing ....)

Now I'm not sure it will be considered as shoulder-riding ... ?!