Subscription billing? (Patreon)

Should I switch to subscription billing style? Basically it will charge you when you sign up, and then again on that same day the next month. As opposed to the current system which charges you on the 1st of every month, and kind of screws anyone who signs up or changes their pledge later in the month. Let me know what you think.

The catch is, that once you set it up, it cannot be changed back. Not sure why, makes no sense to me. But it's how they have it set up and it gives you an ominous warning of no return in the setup stuff.