I believe you'll find that all four nacelles are on the straight part of the wing center section. I'm not sure that this is exactly scale or not, but I think all four are in a straight line. I believe the taper starts at the outer wing panel. (my wing is in the trailer) In any event, I haven't had any "critics" say anything about it yet! In fact, nobody has even noticed that my ailerons are 3" longer than they are supposed to be! (thanks to a screw up of mine!) Out of about 50 members in our club, only about 4 of us have warbirds, so we're not subject to close scrutiny!
Randy