I think that there may be a lot of factors going into doing a "good" non- original leather wrap on a custom cue. The quality of the leather used by the person, the existing channel in the cue when the original wrap is removed, the straightness and circumference consistency of the cue butt where the wrap is being applied, etc.
People make a big deal about leather wraps appearing or feeling "seamless" I have owned custom cues from a few well regarded cue makers and honestly did not see any difference in their leather wraps-all were done to my satisfaction- so I might include Andy Gilbert to the above list. Even the leather wrap from a Philippine cue maker I once owned was done perfectly- Joel Davidas.