I could have gotten a bad ekp or fuel pump but the symptoms presenting in the same way seems suspicious. They mentioned there could be an issue with their hpfp but it’s unlikely. I have the stock unit and might swap that back in this weekend and see just to rule that out.
Below is an updated log after the fuel pump and regulator.
https://datazap.me/u/brockott/202112...og=0&data=4-20
Also shout out to dorch. Emailed their generic custom support form and heard back within an hour with detailed feedback. Those guys are great.