Command tests: Base chance = global or local supply?

[Mowgli]

Agree with ComradeP - playing a Stalingrad campaign a long time ago, the Soviets were always in supply later in the battle, as they had a positive supply boost or two and ended up with a global supply setting of 110 or so. The local supply was worse, but it didn't hurt nearly as much with HQs always in command.

Rick

Okay, so I'm really just incredibly unlucky it seems. 
Thanks for cleraring that up for me, guys! :)

Just to make sure (leaving aside being automatically ooc due to movement and travel mode): 

1) All HQs first test on global supply. 
2) If a HQ fails the first test but its directly superior HQ (if any) is in command this turn, it gets a second test like so: 

current command range of superior HQ / (distance between the HQs + current command range of superior HQ)