Was recently in Calgary and took the opportunity to call Kates.
I asked for the tallest woman they had that evening (it was a Wednesday after midnight), and Jenny returned my call.
She was 5'7, with curly blonde hair. Not skinny, but the curves are just right. After meeting her, she explained that she is Joy on the website.
Normal services were available for $180 for half an hour. Not sure about MSOG, but never made it past one in that time anyway. She was very open and allowed me to direct during our time.
Suffice to say, I enjoyed our time very much.
PM if you need more details.