I'll re-read the set-up instructions today but, they seem pretty straight forward: 1. Set the actuator type 2. Set the high and low boost values 3. Test and verify you hit the desired target values using a boost gauge (other than the factory one). 4. If the boost values equal what you set on the controller then you're all good. 4A.If not, start tuning using the EBC's boost correction feature.
Is this process pretty close to how you set yours up?