4l8r 
Solid gable grip buddy.
ChokeTheFace - Solid gable grip buddy.
someone needs to teach it to this fella...I mean, look at how dainty his grip is!
:)
On video 4 @ 1:32 and several other parts, is there a reason you use this grip over others?
"they" don't want you to know the truth. It is a little known fact that Dan Gable had a 90% win ratio by using leg locks. wrestling's dirty little secret. 
ChokeTheFace - On video 4 @ 1:32 and several other parts, is there a reason you use this grip over others?
Which grip? The palm-to-palm one for the heel hook or the figure-four for the ankle lock?
I'll ask TC (as he's not a UG member) and see what he says, but I'm pretty sure it's to put boney painful pressure with the narrow part of the wrist on the achilles/heel and get more torque.