Yes, If you test a plane with the smaller of two wing types you can come to the conclusion that the "larger" wing with a fatter chord will perform more on the trainer side of things, versus the sport side. Common knowledge of simple aerodynamics will back this theory up. I am testing the sport jet which has less wing area, a thinner wing chord and higher wing loading. If this jet performs great, the "trainer" style wing will just improve on that. Now, if guys are running the 140, they will most certainly be over the weight that is stated by Pilot by at least 1.5-2 lbs, thus raising the cubic wing loading. For these guys I would suggest the larger wing to compensate for the added weight, same is true if you want to run smoke and such. If you want I'm sure I can have a set of "trainer" wings here in a couple weeks so you can see the data prove simple aerodynamic theories. The way a plane flies comes down to a few things, weight (cubic wing loading, not square wing loading) the placement of that weight and general airfoil design and placement. I have talked with Tony at great length on this subject and am sure that all this was taken into account for both wing types. I am not a "new" jet pilot and actually plan on flying this jet a lot, and chose not to have the trainer wing. Hope this clears up why I went with the "sport" wing.