The measurements you will get in Pcola before API is from the "Golden Ruler"... I got initially measured for my pre-comm physical at NAS Jax... months later when they reviewed my physical they said my sit & reach was an inch short to be an SNA, though I still qualified for SNFO... I was told that going back to NAS Jax and getting remeasured whould be almost a waste of time, the safest bet was to go to Pcola and get measured there, because if I were to remeasure and meet the minimum measurement, but then go to Pcola after I got commissioned and not meet the minimum measurement, at this point in time in the Navy, I would have been done with the Navy completely. I also know a girl who met the minimum measurements at NAS Jax, but then was like half and inch short of the min. height when she was measured at pcola... She was very very lucky that several people pulled strings for her to stay in the Navy, she ended up going Supply... so heads up on that.