Ok, I need your help here. I am building the TF GS P-51. I am at the point of getting everything ready for sheeting the wing, one thing has been bothering me though. All of the rib centerlines on both wing panels line up perfectly with the centerline of the leading edge except for the wing tip ribs on both wing panels. I have done some reading about washout built into the wing could this be what I am looking at, or do I need to center up the wing tip rib centerline with the LE centerline or vice versa. Both wing tips are identical within 1/64 of an inch. I will try to up load the photos that I have to try and help illustrate what I am looking at. If the pictures load you will be looking at the wing as it sits on the dihedral jig blocks at the center of the wing. i.e. the wing is upside down, per the TF build plans. To try and explain it differently the LE is about 3/32 high, or the rib is 3/32 down when the wing is right side up. I hope this helps with the explanation of what you will hopefully be looking at. I am very confident the the wing panels are built straight and flat, especially since both sides are darn near identical. If I am wrong or you see or read something that I am missing please point it out, I am all ears!!!