Exposing STO reporting elements

Summary:

Where can we get access to some of the "hidden" STO data points in Eloqua for reporting?

Content:

We're trying to get a better handle on how well STO is performing for us, but the level of reporting for it is limited. For example, if we have a canvas where we have an audience that is a mix of high and low engagement contacts, we would normally use STO for the high engaged contacts and a normal scheduled email for the low engaged ones. The only way we compare the delivery performance of the audiences it to create 2 different emails and compare - is there a way to not have to do this?