Blood Death Knight-gear/spec help

[Åsh]

Hi, ill just start this off by posting my Armory link and Wow-Heroes:
http://www.wowarmory.com/character-s...st&cn=%C3%85sh
http://www.wow-heroes.com/index.php?...&name=%C3%85sh

Current Raid progression is 7/9 25ICC with Putricide and Blood Queen still not downed.

Ok heres what i would like to know.

1.) I dont gem full stam...is my current gemming worth the loss in overall stam.

2.) Im split between 2 diff trinkets: Juggernauts Vitality v.s. Corpse Tongue Coin
Which would be used with my other trinket: Corroded Skeleton Key

3.) Threat isnt an issue but are there other Blood Tank specs which would produce higher threat without loss of survivability.
(the 2/2 pts in Icy reach is because I tank the range boss on Blood Prince Council)

Please pick apart my spec and gear, i would like some serious advice on this topic.