How Deep can you go?

I checked the word "Deep throat" with no luck.

I am just curious, and I guess a poll works for this one on how deep you can go.

I pleasured one guy in my life and he was about 8 inches but i really thought i went only half way, so I got me a dildo, and practiced.

For me, 6 inches tall with 5 inch Circumference is my limit at the moment (only been trying for 1 month now. Would like to get to 7 at least.) Its really a big turn on for me.

So, I didn't know where else to ask...so here I go.

Please be gentle. :-)