Just a thought, here:
As it is so understandably difficult to find ladies willing to go through your rigorous combination of tickling-torture/forced-arousal-orgasm, mayhaps you might consider videos with several shorter sequences of women on the rack?
Might mean more product from you, which most of us would consider a grande thing indeed. Also, I know in the past, I've seen videos offerred from other companies where I didn't find one or two women to fit my preference for appearance, but bought the video anyway because it had one who perfectly fit the Bill(Kobb, that is).
As I say, just a thought...