Before I start, allow me to make the disclaimer that I am no expert, but based on my experiences, your guesses are pretty dead on.
A couple of fellas going together to a shop isn't a deal breaker, but it certainly would raise the hackles on your average nervous
RA, especially if there are other red flags waving.
Entrapment is a constant worry, so your provider wouldn't make any effort unless you make your intentions clear. I'd read a few more reviews and get a feel for what guys do and don't to make sure their wants are being understood. Every guy has his own methods, but lying flat with your eyes shut is probably not one of them. I favor a big smile and a flirty hug walking in the door. Being friendly doesn't hurt anybody and sets the right tone. Complimenting an
RA's figure, hair, conditioning, etc. is all good with no downside. Talking about other shops in the area, even if I'm
BS'ing also opens the door to leading conversations.
As far as the tip goes, Cash is King in this world. Consider that if the girl isn't the owner, she has to wait on her boss to get around to giving her the cash. Is that likely to happen? Maybe, but my guess is she'd rather have the loot in hand - especially when she's risking arrest. I only paid with a card once, very early on in my mongering career. The place gets busted with a NFL player in it the next day. Somewhere, my name is in an evidence box... Lesson learned: The less of a trail you leave, the better off you are.
Hope that helps. Be careful out there.