That didn't/doesn't hold true for me. My mashes pretty much follow this rule of thumb:
This is for my system, pretty much regardless of malt type.
HERMS(two loops, a heat and a cool, accurate to 1/10th of a degree), mill gap of .025, 60 minutes, 5.3-5.5 pH.
I posted my results to Denny's wall, but I have no idea how to find it.
There is no way I will mash a Pils at 156 and add melanoidian, that is a sure recipe for disaster(for me).