Yeah -- I really thought about providing a "4 hours of actual usage" trial instead of a 14-day trial for a product of mine -- thinking that they could sign up immediately, not worrying that they don't need to fully try it within the next 14 days.

But the problem is, users don't understand it. The think it's 4 hours from when you sign up. The amount of text it takes to explain that it's actual cumulative usage, is so much that they don't read it. They just see 4-hour trial, and think, that's weird, and I don't have time for that right now.