Hi. After those suggestions there is not much to do because you have good form. Then it is mostly a matter of gaining more muscle power and coordination, throwing faster, getting optimal discs to optimal apex height and pushing the front of the disc down.
Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.