Honestly, why not remove juggernog from the game and give all players extra HP by default? Juggernog is one of those perks that you just can't live without, and one of your perk slot should be reserved for this perk, no matter what. Remove juggernog, and you have a free perk slot for something else. On the other hand, this will significantly reduce the difficulty. Would you go for a more convenient free perk slot that reduces the difficulty, or would you keep the current difficulty?