Difference between Adult conversion types? Revshare, Trial vs Full membership, Discounted membership?

Hi, I just broke into adult affiliate programs and for each website in the network, this particular network I am looking at had multiple types of linking codes (affiliate links).

For example, for this one website, they have 5 linking codes!

Pay Per Signup on Full Memberships
Discounted Membership ($19.95)
Pay Per Signup on Trial Memberships
RevShare on Trial Memberships
RevShare on Full Memberships

Now, me as a webmaster running an adult tube site, how would I choose which one is the best? Does anyone have any experience with this?

I am aware of the difference between pay per signup and rev share model in general.

But I am a bit confused between Trial and Full membership.

If I use a full membership linking code and the user converts as a trial member, do I get anything? I am confused about this kind of stuff. Can any kind soul clarify for a dummy here?

Also, how would I choose which model to go with? I guess I am going to stick with the model I choose from the start so I am really curious which one is the best in adult niche.