Crimson Pro S
A slightly modified version of Crimson Pro.
Crimson Pro S differs from Crimson Pro in a few stylistic details: sharper terminals, straight-legged capital R, slightly resized punctuation, somewhat lighter-leaning weight distribution.
It's no better or worse than the original Crimson Pro by @Fonthausen, just a little different.
Building the weight instances
Clone this directory, install fontmake (I recommend using a virtualenv), and run
fontmake -m CrimsonProS_Roman.designspace -o otf -a -i
fontmake -m CrimsonProS_Italic.designspace -o otf -a -i