Ganzo seems to be hit-or-miss for quality.
I only have two G724s to go by, but one is perfect and the other one had a tip touching the liner and a clip that was too slack.
Removing and bending the clip fixed that issue.
The tip centering was puzzle, until I noticed the liners were not true. Both were bowing to the same side, giving a ~0.5 mm gap when lining them up against a straight edge. Bending them ever so carefully in a bench vise until they were 100% flat fixed the centering.
It was also worthwhile the dis-assembly just to clean out all the excess oil between the liners and the scales.
The small scale screws are tricky. They screw into small free-turning threaded aluminum? spacers. One side comes loose, but then there is no way to grip the spacer to remove the screw for the other side.