Last night I played with a tape measure and a workbench...
I realized that my planned cab was going to feel a bit low. I measured the height of the bench surface as if it was my playing surface... 36" exactly, but it felt a little low for my height (6'3). I have two choices, change the design or modify the base. Since my base already has a 95mm rise to it, adding more would look stupid. I have decided to see if I can eek out an extra 2" on my sheets of wood and modify my design.
Do not speculate... imitate. You can likely find a surface that will allow you to stack books etc on it to adjust theoretical CP height. Also worth noting where your monitor will sit. Depending how your neck and arms are aligned, certain positions can be more fatiguing than others. Especially if you're tall. It's worth it, as it would have left me a bit sore had I not checked.