As a Christian Marketing Agency, we send a fair amount of direct email marketing to our clients, our Christian Influencers & Christian Bloggers, and our faith-based PR lists. We’ve used MailChimp’s Send Time Optimization for every email blast in the past, but have always struggled with the issue of trying to pick which time zone to base our send on. Generally, we’ve picked Central time because the majority of our clients are in that part of the country, even though…