I'd love to see you perform some more tests (10, 20, 30) now that you have settled into your new website - for the good of the Internet!

Mileage, I'm sure, will vary depending on the audience.

Our company serves organisations of all sizes. I reckon a 14 day trial period would improve (at least the immediacy of) our conversions of small business customers, but it would simply cause difficulties and annoy our enterprise customers, often with a team of people involved at varying levels who are often spread over the world, resulting in a slow ramp-up to testing.

Targeting different trial lengths at different stereotypes of lead would be an interesting project...