Yeah i see, hehe.
I found this info which may or may not shed some light on those wingtips:
Small winglets may be utilized, mainly to increase pressures on the outboard aileron and thus improve roll rate. The winglets have a secondary role to reduce induced drag, which translates into reduced energy losses during high-G maneuvers. In order to function at both positive and negative G, the winglets will be symmetrical airfoils rigged at zero incidence and will need to be highly swept to cope with the widely varying flow conditions at the wing tip.