IstvanXXX

Dear members, I have a question for my upcoming adult paysite, please help me about this question - who has experience about this:

When a new visitor surfing on an adult paysite:

1. some sites allows the visitor to watch unlimited free trailer without membership for all videos.
2. some sites are allows just 2-5 free trailers before purchasing a membership,
3. and some sites do not allows any of previews before a visitor purchasing a membership...

What do you think, which method is the best converting ?
So which of these three method are the most workable in this time ?

Please tell me your experience, idea, ect..

Thanks. Cheers.

Istvan