I think I will just do 2 cycles of the conventional 15,10,5 setup for simplicity.I am still a bit short on exercises,I just dont think I need much more with the compounds I listed.Maybe all the time on 5x5 has put me off isolation exercises lol,but I just feel like I am wasting my time doing curls when I could be doing deadlifts or powercleans.Maybe I should give in and put some iso stuff just to fill in gaps.Even the HST website says this,
Utilizing lactic acid as a stimulus for tendon repair/health
Now HST incorporates a few other things such as higher reps (for lactic acid) to prepare the muscles and tendons for future heavy loads. This serves as "regular maintenance". Without it, you increase your risk of chronic injuries and pain. The metabolically-taxing reps enhance healing of strained tendons.
Compound Exercises
HST also suggests using compound exercises to maximize the effects of loading on as much muscle as possible per exercise.
Progressively Adjusting reps to accommodate Progressive Load
HST suggests that you use 2 week blocks for each rep range. Why? It has nothing to do with adaptation. It is simply a way to accommodate the ever increasing load. Of course, you could adjust your reps every week (e.g. 15,12,10,8,5,etc), but this is more complicated and people might not understand. Often times, in order to communicate an idea you must simplify things, even at the expense of perfection. If people can't understand it, they won't do it. What good would that do or anybody? Then, over time, people figure out for themselves the other possibilities that exist within the principles of hypertrophy.