Never met RH but I have always liked his very inclusive advertising. I have met JLA and would enthusiastically recommend him for anyone from first time bottom to used and abused size queen JLA is just a totally awesome dude and he is good at making you feel good.
People have long argued is it the size of the boat or the motion of the ocean. As previously discussed in other threads, there are guys like JLA who have the skill to not make it hurt.
To the other point about discriminatory preferences in providing services. If we agree that escorting is a legitimate business it might not be ok. Take for example the Santa Monica California Municipal Code:
6.104.090 Requirements for all massage establishments and massage technicians
(ee) All massage establishments must comply with all State and Federal laws and regulations for disabled customers. No massage establishment, operator, responsible employee or massage technician may discriminate or exclude patrons on the basis of race, nationality, gender, sexual orientation, religion, age, or disability.
this would lead me to beleive that you can clearly refuse a massge to an ovwerweight person but you could not refuse service to the same person for being a woman or being old etc.
Of course in anyones personal life (not businesses and services to the public) you can discriminate for whatever stupid reason you so choose. A legitimate business or service may not have the right to do this.