I've broken my vow
, but I saw your original post sit without comment and I wanted to let you know why, at least I, hadn't responded. Soil Savvy may or may not be an accurate test, they haven't revealed any documentation of any studies showing correlation or calibration of their process and results done in house or preferably independently. Therefor, I do not make suggestions based on their reports. I have no desire to do someone's lawn harm.
For instance, Soil Savvy states it is a paste test. A saturated paste test is considered a "snap shot" of the nutrients at the particular time that the sample was taken. It is suggested that it be employed to determine timing of applications and not be used to determine nutrient amendment quantities. In addition Soil Savvy reports your pH as 6.79. Soil Savvy used to caution that reported pH was about 0.5 points below actual. Is the pH of your soil actually 7.3 or did they already adjust it from 6.29? Not that I think it's a good practice to make lime recommendations based on soil solution pH anyway.
If I were you,, I think I would just continue with maintenance fertilizing this year. Apply N at 1#/M using your regular schedule and apply some type of K source (something in the range of 2#/M of K total this year). I might make two applications of a triple NPK (like 10-10-10) for two of my applications and Milo the rest of the time and do another test next Spring before you apply anything and use a lab that uses established testing methods.