i'd either use a cheaper trial - one that really lures them in with a low price ONLY if you update very regularly

or i'd go with no trial and offer a 3 month membership at a discount from the 1 month.

i promote a str8 site that has a cheap 3 day trial and rebills like crazy. it's one of my two best-retaining sponsors.

honestly at this point, i would go without a trial. you don't need it - you have a corner on this market, pretty much. but you might get more affiliates if you have two different tours - one with a trial and one without.