-What brand do you use? Link it
I use General's and you can pick it up at the cash registers at Hobby Lobby.
-Is it more or less mailable (soft or difficult to mold?)
It is like play-do but with a little harder feel to it.
-Difficult to remove after extended sub-zero sessions
Removal is a breeze. Usually comes off in several pieces but nothing too tough.
-Needs to be heated a lil to easily remove from the motherboard
Haven't tried heating it.
-Any other observations, conclusions you've drawn from comparing brands
This is the only brand I have tried.
-Its cheap and it works......
It is cheap though the price went from $1.39 to $1.69 still cheap.