my Kadet Mark II (newest plane lucky number 13) measures EXACTLY the same from glowplug to either side of H Stab but measures 1/4 inch or so off from left wing to left hStab and right wing to right Hstab but who cares, ill straiten the wings out and it will all be good, my old mustang was so grossly off that you could clearly see the difference, the garage door closed on the tail and moved the Hstab while Epoxy dried (about 1/2 inch) and its ok dont wory about it. as long as you built a good plane, it flies well and you did your best then you can look yourself in the miror and feel good (this is why i dont do ARF or RTF no satisfaction) dont kick yourself over it, no one else will. (be carfule with covering if this is your first time, covering masks NO flaws and actualy brings em out. sand it till you want to lay it next to you in bed like a teady bear ;-)). covering makes it or breaks it if the covering is nice, NO ONE (not even you) will notice tail.

-edit-

terible spelling, fixing the bad stuff.