...about letting out on the clutch and rolling back down the hill, I heard that was a big no-no with a crawler. It's possible to spin the clutch so fast that it shatters (what's 200:1 reduction to the tires is 1:200 multiplication to the tranny). You'd better shift back up into high, or at least out of double low. I can dig up a smelly old thread from pirate 
if anyone wants to read more about it.
this is true it has happend to me it in just 4.7 low but luckily the peaces normaly bind up and just wont disingage so you can still start it in gear and drive home lol
