In a nutshell:

Had downpipe replaced at exhaust shop.
Turbo had to be removed to remove seized bolt on factory downpipe.
The guy is quite sure he got everything put back together the way it was before he touched it (specifically the wastegate actuator rod).

I know I'm feeling less back-pressure because of the catless downpipe but, it also seems the boost isn't building as hard/quick as it used to.
Am I psyching myself out and it's just the reduced back-pressure or might I actually be having an issue?
How can I verify my wastegate actuator rod is adjusted where it needs to be?
Any and all help is appreciated.

PS I can't use my AP to check boost pressure because I have a GPS tracking device on my car for theft that interferes with the AP and using it for gauges.