The main secret is how to generate traffic to your C4S store - the secret which nobody is really willing to share!
I've never tried promoting a clip store...
Personally i would rather submit movie/picture galleries promoting a paysite that has a 3 day trial for $2.95 compared to a clip store that sells a movie file for $2.95. For the sales ratios will be fairly similar due to the exact pricing - but in actuality there should be a slight advantage to the paysite for having a shitload more content. Another reason i would rather promote a paysite over a clip store - with the paysite 50%+ of the trials will actually convert to a full membership. With my sites, the average customer ends up spending over $70 lifetime. If i sent my traffic to a clip store - I would need some amazing sales ratios and repeat customers just to come close to my paysite earnings. I don't see it happening!
So whats the secret? Is it to make a special paysite tour with access to the paysite and access to the clip store? So when you submit a picture/movie gallery you are actually promoting both the paysite and the clip store at the same time? Let the customers choose what they want to pay for and hopefully generate more income that way? Basically use your paysite to promote your clip store and use your clip store to promote your paysite?