Bogging down, and immobilization

[Extraordinarius]

I did a series of tests a year or so ago that I meant to post here. They suggested that other things being equal, the chance of bogging/immobilizing was the same for any given distance travelled, which indeed meant that you were more likely to bog in a turn if you were travelling at 'Fast', but moving 'Fast' was a good idea if the player got advantage from "gitting thar fust with the mostest men". The chance of bogging increases with the ground pressure of the vehicle, and also as the crew quality decreases, but I did not get around to investigating whether it is also related to the actual speed of the vehicle. I must go through the lists and find two tracked units with the same ground pressure but significantly different top speeds.