Yeah,the black one was the older kit and it had some size discrepencies too.This one doesnt have the supports on the ribs for the leading edge install,parts that were left out(minor,but still) and the laser cutting isnt all that great on the pieces that the density varied alot in the sheet of wood.With all that,I called CG tech assist and figured ways to work with what I got.Coming out pretty good and I learned a few building tricks for later on.After seeing I could actually get it to work,its become kinda enjoyable.I ordered the 14oz Graupner yesterday for it.The 12 was lasting about as long as I need at one time(flew at 1/4-1/2 throttle most of the time)