To say that a provider cannot be a SB is limiting to both providers and SB.
And, further, it is to imply that one person's ideal SB is the only type.
The human continuum of experience is not quantum but flowing. There are few sharp edges. Lots of grey divides.
I'm sure there are some providers that make excellent SB. For the right SD.
I'm not here to define or limit people.
Its up to the individual woman (the owner of the smile, tender touch (and everything else they bring - and yes the vagina), who seeks to be a SB, and the individual man (the owner of the charm, confidence, experience, money and yes, penis) who is seeking to be a SD to each define what THEY want.
Every person has different levels of most of those things - looks, charm, youth, money, experience, confidence, experience.....
why arbitrarily limit two humans experience by telling them that A can't be or do X?
To each his own.
I'm glad to read the good experienced people have had. Learn alot.
Im sad to read about the negative experiences. Still, learn alot.
Peace to all and may you find yours.