The Hatsan Gladius Inconsistency and balance issues

This video shows how the Hatsan Gladius was shooting, and returning the standard transfer port to try and solve consistancy issues. This may require a slight modification to the standard transfer port, but by the end of the video the rifle is shooting at the correct power. The standard transfer port is 1mm in diametre. An increase into 1 1/2 mm could be the ideal solution in the long run. The video shows the strip down and rebuild. If you want to skip that bit, go forward about 8 minutes.