I've only had a double once in my life. It was pretty cool but I could tell one of the girls was not into the session.
I've seen two providers in a day only because the 1st one turned out to be a bait and switch and I was thinking with the big head that day. I left and called another provider. The 2nd provider although not a b&s turned out very bad. I probably would have had a better time with the b&s.
I also went on a run where I saw a provider a day for a week straight. I was broke as hell afterward but it was a fun run.