Hi,
Thanks for the clarifications. Let's see if people swing with this, I hope so, because we all know how much work all of this represents, so this patreon system may give some positive momentum to community work.
Some publishers simply provide both as well, so that future members finding your work can choose to get it for free or sponsor you via patreon anyway just to let you know their appreciation. So I would suggest you keep both and make it clear to everyone.
Bye,
Jean