I'm not crazy about "Immobilization!"

[Kool Kat]

Gents:

I understand and accept vehicles becoming immobilized as a result of enemy fire.

But, I have a harder time accepting immobilization... simply as a result of moving? What exactly is the percentage chance?

Case in point. Recently had a perfectly "good" Panther G moving from one clear hex to another become immobilized! No enemy fire. No obstacles. No mines. Just rumbling alone... minding its own business... and than stopped dead in its tracks! ;)

Here's what the SB user manual states:

"Secondly, as a Vehicle moves across the ground, there is a certain chance that the movement will cause the Vehicle to become Immobile. For a given movement from one hex to another with a movement cost of C and the Move Immobile Factor parameter data value F, the probability of the movement causing the Vehicle to become Immobile is C * F."

So, am I just the receiver of "bad luck" on the battlefield? It's got to be a really "small" percentage chance for movement-only immobilization to occur - correct?