I have a lot of the Brodak ARFs that will let me determine which I like best for my style etc. before building from kit or plans.
I have noticed the balanceing instructions on the ARF's are often not very specific and vary from each airplane.
The Vector instructions seem to imply that you measure back 1 7/8" at the tips which would translate to about 2 3/4" > 2 7/8" at the root. John, since you frequent this site I would recommend you include in all future ARF's and ARC's a side profile drawing (8x11), with the correct location of the CG as included on most plans and this would help solve some of the confusion and reduce the likelyhood of an unbalanced and miserable flying airplane.
Thank you,
Bruce