I wonder what the pros and cons are of having a barrel bushing of the 1911 design vs not having one like in the Hi Power. I realize that the barrel link in 1911 vs barrel lug in Hi Power probably affects how the muzzle end of the barrel moves during firing and makes a bushing necessary in the 1911, but that's just my speculation. My main question is whether the bushing is critical and how it affects the firearm's accuracy and reliability.