OK, however, different brands have different sizes (of course). Example,
rail/stile, Whiteside will have steeper bend (shorter), while some others
have longer bend. Also, for the raised panels, some are wider (and shallow)
or short (and steeper). Yes, speaking for the same thickness, slightly
different slopes.

Or is it me being too picky?

Chuck

Dimensions for the cutters regarding the material are simply the
cutting height--that tells you what thickness of door rail/stile
material they're suitable for. Typical cabinet doors are 3/4" w/ a
1/4" groove for the panel. This is determined by the grooving cutter.