Blood For Bloods cooldown is 80s, which means back when Life Surge was on a 60s cd you essentially had to skip a TTT segment of your rotation and not use Life Surge until the next TTT when BFB was up. Now instead of waiting 20s you have to wait 30s. It might be worth exploring using LF outside BFB but before 2.45 I would rather my Full Thrusts crit for 1900-2000 instead of 1300-1400.