I have a whole new perspective now. Not only of why/how my setup was wrong but what I need to be looking for as well.
I was removing wallpaper in the bathroom & thought it would make a good backdrop to measure what I actually am & not what I think. So I grabbed a pen, sat against the wall & made my marks. A little tricky by yourself but you get the idea. Now I know that I need a shoulder slot height of at least 25.5" and a skull touching headrest height of 33" or more. My seat selection just became much easier!
Looks like the PRP Comp elite fits the bill. With a +2" height option and a -1" Podium seat cushion the end result will put me exactly where I measured myself. 33" headrest & 25.5" shoulder slot.