drip feeding on a daily basis?

Hi, after reading the tutorials for this plugin and going through its settings, it seems to me that it is not suitable for what I need.

I want to creat a 3 Months Fixed Term Memberships with monthly payment and 4 Levels (Free, Bronze, Gold, Platinum). I need to drip feed on a dayly basis (1 day after sign up, 3 days and so forth and integrate the members data base with MailChimp.

Even if I would settle for weekly drip feed: I could use categories for the different Levels, But how to do the drip feed then? Its a bit cumbersome that the drip feed is done with levels.

I hope there is something that I am missing? A work around or such? Please help.