I'm an MP virgin who may or may not cave in to the hunger at any moment.
I have a problem using public showers & baths - foot infections at gyms long ago chased me out for good.
For a variety of reasons, if I were to consider MP's, I'd be interested only in Reverse and possibly Fetishes, which some advertise. Therefore, would I still need to take a full shower? Would it satisfy the Lady & establishment to wash only the parts that may be used (with soap, towel & water bottle over a sink or buckett)? I'd be arriving clean, straight from home anyway.
Do you discuss this with the front desk or the attendant herself? The one time I tried testing the waters 2 years ago, I found the downtown places tight-lipped & evassive, so I held on to my cash & walked.