Originally Posted by
lineinthewater
If I use my 25deg stem, I would still have 1.25" of spacers under the stem - that's my current setup. This may seem high, but I need this fit because of back issues. It may not be optimal for aerodynamics, but it's optimal for minimizing pain. So, it sounds like you would recommend sticking with the 25deg stem to avoid too high of stack height.
Given your height needs,I don't think you can go with a shallower stem, even if you go to 40mm of spacers below. (use the calculator to check), so yes, keep the high angle stem.