For a new senior a midrange could be a better option. Depending on her power and form it could be something like Panther, Coyote, Buzz in order of rising power requirement with the Panther being low in power requirement indeed and the Coyote taking power fairly well and going the farthest and the Buzz in Z plastic being the most tolerant to throwing form errors.
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.