Check your center to center distance, Then set the deflection.
The washers only affect the holeshot. In the how-to section It states that not enough deflection (to tight) can cause loss of top speed. But it is actually the center to center that causes this. Also says that to loose deflection causes midrange bog, not true, it is center to center too close.
Like I said check center to center and offset, They all work hand in hand. If the center to center is shorter, the offset needs to be decreased slightly