Are the famous pornstars better? If it is, than it's in the f-cards since they have more experience with being filmed in masturbation shows, g/g and b/g. They are not better dancers: the best dancers in the last month's were for me Isabelle, Jessika, Angelika Grays, Elis (Czech), Ellie Leen (in the cards, where she's really dancing), Anastasia Brokelyn (a beginning pornstar) and Tina. My impression is that Totem selects the last year more on dance and pole dance skills. That's more important then their nationality.
I'm not convinced that pornstars are likely to be better on iStripper than unknowns, or that they will necessarily be more expensive.
Pornstars certainly seem to be more reliably good than unkowns at xxx, but only a few of them will have developed dance skills. There are many internet unknowns working the clubs and cams in Eastern Europe and they are equally likely to have the skills and beauty to put on a good show here. Of course, most unknowns won't want to strip on the net, but a proportion will and that number depends on economics and their alternative sources of income.
I think Totem finds it difficult to determine in advance who will do a good job. We know they ask for vids from unknowns and we know they've passed on some pornstars doing European tours - because surely the girls' agents will have contacted them. Maybe they were asking for too much money. But equally, we don't know how difficult it is to recruit unknowns, or how selective Totem is.
From the performers' point of view, maybe they sometimes need the money, but also they need the exposure, whether they are unknown or established pornstars. Whether they supplement their modelling with clubs, cams or escorting, a good iStripper performance must be useful.
So I suspect that Totem offers a pretty fixed fee for Take-1s and adjusts their profile in the market so that they get a regular flow of decent applicants (in their view). They'll modify their approach, if the proportion of pornstars/unknowns changes, for example if they fail to book any pornstars for a few months. They'll do the same if quality and hence sales drop off. Maybe they'll stretch a bit for a performer at the top of her career like Jia Lissa, but not enough to attract the likes of Kendra Sutherland.
So show quality will vary over time, depending on many things. Totem will almost certainly ignore the rumblings of the tiny minority of customers who participate in the Forum.