You're doing it slightly different. I go from 'in focus' out to HFR 3 and note my 'out' distance. Then I go back to 'infocus'. Form there I go 'in' to HFR3 and note my 'in' distance. I take my 'out' distance from my 'in' distance and divide that number by however many data points I want. I use 9, but you could use as many as you want (9 is recommended by Jared/Ken). That gives me my step size. All of these are measured in 'steps'.
Her problem is she's using an SCT and has backlash. You need to calculate your backlash setting. Start at 'in focus' while moving 'out' to arrive at 'in focus' and turn on HFR measurements via the 'star' icon on the tool bar at the top of the screen. Put your step size for 'fine' focus to something small like 10 or 20. Then, click once, and take a picture. Note the HFR. Continue this process until you finally see the HFR change significantly like you would on an Autofocus run. My scope is like HFR 1.8 then 1.2... you just have to know how your scope works. Subtract your 'in focus' number from the 'HFR changed' number (in steps) and that is your backlash. You'll put that in as backlash compensation (per the manual).
That is the hardest part.