Personally, I feel that the PTTP methods are really applicable to OHS, which requires huge attention to form. You can't do your normal back squat weight or your normal overhead press weight because of how much energy you expend just balancing. Balance is hard.
After struggling to do them at all (literally, tipping over like the sad statue of a dethroned tyrant every time.) I started going really light with PTTP 5-5 and I'm surprised how quickly I made progress and have nearly hit my normal OHP weight and haven't broken my nose yet. Doing five reps means you don't fatigue out of good form, which in the case of OHS can be even more dangerous than other lifts.