Holy shit dude....that's impressive! I've been trying to find a woman that can go that deep for quite some time. Have had a couple that came close, but nothing like that. Crazy!
It all comes down to the woman
wanting to have you all the way down her throat, if she really wants to deepthroat you and has the desire and patience to learn how to do so it can be done by damn near any woman.
My gf learned how to do it like a pro after only a few months of practice, and now she does it with ease, well she used to at least until I gained a quarter of an inch in girth from PE.
Now the last half inch before the base is a bit of a struggle to get past until she is really warmed up to the task, but hey I ain`t complaining and neither is she so its all good!