I don't think I care to worry too much on the semantic difference between the two.
However, I did just pick one up. I figured with my recent cravings, and my open-mindedness on trying risque things, I'd try it once. I showed her my cock via picturemail, and asked if she could take it all the way. She said yes.
When we met up, I threw a condom on and she blew me. She wouldn't even no-hands deepthroat it soft, and was going to try to get on me with it at roughly 50%. I told her I wanted more, I thought she could take it all. She kept making excuses and trying, and I kept getting harder, and trying to fuck her mouth. She'd only let me slide about an inch either direction, basically only taking it to the brown stripe when it was mostly hard. After a while, she said it was boring, but murmured it. I had to ask her what a few times to understand her, and I think she thought I was about to be super-pissed.
I mentioned the fact that I was expecting her to be able to take me all the way, and that I'm sorry if it was boring for her, but it was also very disappointing for myself. I quit after that, didn't cum or anything. Gave her the escort fee afterwards in full, although I mentioned it should be probably less than 1/2 of that even. Used her bathroom to flush the condom down/wash my hands, and went to leave. I explained that I had hooked up with escorts before without paying them, and they were all about taking it. She said that was a fetish since I was big, and customers aren't normally well endowed, fit, aggressive guys. I told her no worries, and was leaving, and she offered a 2nd go for free with a friend of hers. No thanks. I tried it once, and I think never again. What a letdown.