I hope you enjoy your new shirt! We'd love to hear your feedback once you get a chance to try it on.
As for the fit guide, what would be helpful to include? We recently revamped our fit guide, but I'd love to know where you feel it is lacking and what we can do to improve. We want the process to be as easy as possible. Thanks!
A fit guide for shirting need include the following:
Across the back
Since you have two cuts it's critical to to include the chest and waist measurements as, presumably, those are the only two measurements that differ between the two options. It's also helpful to include a graphic illustrating from where on your shirts you take your measurements. Gustin does a good job of this: