HI

I would like to know what is the difference between the end of the wing in these two models in the picture.
the purple model is SUDOKOI and his end of the wing look like all the 3D planes today.
the orange model is SIG FAZER and his end of the wing look like it cut straight.

i read in RCUNIVERSE -3D PLANES furom about people with the GP U-CAN-DEO 3D 60 that had a problem doing knife edge with it, so they cut the end of his main wing so it look like my FAZER.