Looks OK. I would say this: formulas for saddle height worked well for the individuals who developed them. They may not work for anyone else. Saddle height is individual and depends on flexibility, muscularity, history, and pedaling style. There can be quite a bit of variation. You want a saddle height that allows you to produce the most power for the longest time. There are no other metrics. Experience will tell you what that is. Go on a hilly ride with a wrench in your jersey pocket, stop frequently and vary the adjustment. I go by how it feels when I pull back at the bottom. I do start off with the heel-on-pedal thing. That gets me as far as the base of the first hill . . .