Tuning Ugh... More Prophet help please

You more than likely (like 100%) you have the older coned spring regulator. 
Reach out to Mr. Rob [email protected] about getting the newer spring model. 
You can also call AoA and see if they have one in stock. 
consider upgrading the bottle manifold that has gauges for both the reg and bottle. Makes it easy to monitor pressure both upstream and downstream.