Am I an exception? 

"Few human males are both sufficiently "well-endowed" and flexible enough to perform the extreme front bend required  though increased flexibility achieved via various activities such as gymnastics and yoga might make the difference for some."

Well, after quite a bit of training, I can now perform auto fellatio. However, with a penis size of below 6 inches, I could not by any stretch of the imagination describe myself as "well-endowed". I don't use a "front-bend" method either. I lie on my back and bring my body in towards me, so my legs are often going up almost vertically against the wall at my back. Its the position you'd take if you wanted to, for example, ejaculate down into your own mouth.

The part about being "well-endowed" seems factually wrong, or at least a poor (ie very subjective) choice of words. Flexibilty is the main factor. Also, the topic seems to imply that this front-bend method is the only way. I've tried the front-bend but cannot quite do it. Bringing my penis in towards me from above, with my neck and back extremely curved, I can. I don't know if I'm an exception here.

Cheers though. A nice article to find, but I think it needs some clarification.