" Note prices were 460 per half hour or 960 for the hour. I'm not the bang and go sort so despite poor selection. The hour is fine "
I have been to High Class several times. Why would an hour be over twice the 30 min rate? Sure you heard her correctly? Maybe 480 and 960?
But when faced with this kind of pricing ( normally 1 hour is exacxtly twice the half hour rate), I always go with the shorter period. After all, if you run out of time you can always just ask for another 30 min and still be at the same price. But at High Class I have usually stayed 40-60 minutes for the cheap rate and have never been called on time.
If you are SURE you want to pop twice during the session, then the hour is usually mandatory. Otherwise go short time . . .
Just my opinion and experience . . .