I like your hard massage styles, BUT

this is North America, and not having a head support (the kind that can incline and that has a hole in it so customer can have their heads straignt forward) just gives me a great pain in the neck when I am done. That's why as much as I like your massages, I don't go back.

Besides, how can you massage the neck when the head is cranked 90 degrees to one side??

as to protestations like spreading gems etc., there are ways around that.

So how about it, put in those head rests and get more clients like me? You can always remove them when your next client does not want it.