ORIGINAL: Lifer
Before you attach the ailerons, maually add true washout by bending each tip upwards
Don't you mean DOWNWARD not Upward?
Bending the tip down, helps eliminate tip stalling as the outer parts of the wing will not be stalled as early as the inner part of the wing.
This is why LE droops are used on trainers.
Upward would exacerbate tip stalls.
You want the tip AOA more in line with the direction of travel not less, if I'm not mistaken?