Most MAs allow DATY if you're polite and behave yourself. Not all though and if they don't, you need to respect they're choice. I saw a babe at a place in Toronto a couple of years ago who would hover her cuny about 2 cm above my face, but I wasn't allowed to touch it. Kinda frustrating, but kinda hot too. She told me "next time" but I refuse to play that game so I've never been to see her again. I've probably seen 10 girls there, and other than one who was having her period, they all were happy to give it up.
I'm a little out of touch with KW places, but you should be ok, but as I said, don't be demanding and let things flow. Make sure you're squeaky clean "everywhere". Ladies constantly complain about dudes who seem incapable of washing their asses. Ugh. Brush your teeth, and use mouthwash. First impressions with a lady go a long way I think. Even though we're paying for their time, if you treat your session like a first date with a new girlfriend, you should have a ball. Just be warned, it's addicting.
You started to ask about your "pubes"... not sure where you're going there, but I think ladies prefer "well groomed" but not necessarily shaved. I little buzz and a trim should do it.
Have fun!