Falcon FN19 after repair. Will it show any improvement

Taking a look at the Falcon FN19 after I had done the repairs required. The first issue to sort out was the trigger - there was hardly any first stage and the second stage was too heavy - an easy fix. The nest issue was the silencer adapter which had caused some grooves with raised burrs on the actual barrel that was causing clipping and inaccuracy issues because the adapter had been pushed over the burrs and was miss aligned. The third fix was to remove the fill port and fit a new one with an air gauge so I could see what air was in the gun. I'm still needing to get a regulator fitted at a later date.