AM armoir is tricky to trim to get to fit your body. Well not exactly tricky but tedious. I ended up trimming the sides of the chest off, as well as the trimming back the neck opening of the chest. I also trimmed the back piece quite a bit. Lots of trimming, test fitting, trimming...until I thought it was right (based off my TE2 armor).
I think John's armor is good enough to pass clearance - but your armor could be trimmed further for a better fit. My suggestion is raising the chest and back piece and getting the butt/lower back pieces pulled down because it looks like the upper back is too low and the lower back/butt is too high. Just my thoughts
Here's a pic of the side of mine trimmed
And here is the back of mine