I would never in a million years see a girl who offered hardsports.
Really. But if she is super fit, hot, and good in every other respect, what's the problem. If she likes to shit on a client a long long way away from me should I care. It maybe means she has excellent anal sphincter control, and if she's taking care of herself then probably excellent anal hygiene too.
I have no wish to try hardsports or childminding or a host of other things but they are not per se objectionable, simply not to my taste.
DFK - I tend to find WGs openly offering this on their profile to all and sundry turn out to be the ones I least want to DFK due to their bad smelling breath. I am not drawing conclusions from this but I am fussy who I DFK and it is simply a statistical observation with the many prossies I've sessioned with.
Following on perhaps from the first point, I am not an anal addict but do enjoy it occasionally. Many women simply do it for the extra cash and steel themselves to relax and not let the muscles react. This results in a C- . Unless the woman is intimately aware and conversant with her lower orifice, one might just as well be fucking a doll.