You don't need to use 0-1 color values in substance. If you set the color picker to "RGB" and then click on the three dots to the right, and deselect "floating point values", you can set the color picker to use 0-255 colors. (see image)
@codyaq2 - Thanks for the encouragement, I really appreciate it! Took a stab at baking normals recently. Here's a Kar98 bayonet. 555 Tris. [SKETCHFAB]94ce85536ded4ac5bcc76a9076d9d627[/SKETCHFAB]
They are about 5.5 heads high. A generic normal person is somewhere around 8 heads or even 9 for tall people. Maybe the perspective gives the wrong impression.