Until now I've always charged a very low trial fee. Say, $1 for the first 30 days of service then auto bill after the 30 day $1 trial. Never thought it was a g

Until now I've always charged a very low trial fee. Say, $1 for the first 30 days of service then auto bill after the 30 day $1 trial. Never thought it was a good idea to request credit card for free trial, though I haven't tested it. Now I am testing a free trial that is action based, so the first 3 actions are free, but anything beyond that requires a full subscription. The reason is because the product I'm selling the primary concern potential customers have is "how would I use this" so we give them time have an a-ha moment but not enough to get a tremendous amount of use from it.