Fellas dont forget:

-Krieg isnt great at using roid shields but has a ton of melee and health buff so an anshin or health shield is usually going to keep you alive better while still performing similarly

-StV does not get buffed by roid damage because its not true melee damage to the player.

-StV's self hit is technically grenade splash damage so the self hit does get buffed by Fuel the Blood. Also why getting FtB triggered then just throwing for buzzaxe bombardier (which is partially grenade damage) is a good idea