The stringing pattern of VT80 is just the simplest stringing pattern that preweave all the mains and crosses. Tensioning the mails from one side to another side, then crosses from bottem to top. Such a stringing process is not recommended for higher tension stringing work. On the other hand, The stringing pattern of Arc11 is far better, could be SZ or Gosen professional pattern not very sure from the photo, tensioning mains from center to both sides. Should be consider as a more proper stringing process. The later stringer is better and skillful, also the racket strung is better playable.
I think I know what happened here: There are 2 different patterns used and it could related to how the stringer deals with the last few mains on the sides. Recall that the Yonex stringing pattern asks us to go from B9 to B12 (which you see in one of your racquets), but for the other racquet, it may be that the stringer when from B9 - B10 - B12 (which would explain the long path traveled by the string along the outside of the frame). Not sure if that makes sense?
