your choice ...
If you go revshare .. I would skip the trials .. nothing worse then to get $0.60 for a signup and the nothing because the surfer decided to cancel.
Then about the monthly options.
if you take the really cheap option .. you get afcourse less money but mayeb because it's cheap the surfer will stay a member longer and you can make eventually more money.
I prolly would go for the $19.99 if I would go revshare ...
but you can always change links after a few signups/months... if it aint working out as you did plan
