What SirMixalot states is very true, I tried playing with the 40% health with my 50 and all I can say is Ouch! I tried mantaining it with Force of Natue but that coudn't hold it for long with out pumping in insp and avoiding healing powers when bleeding from the head is just not smart tactics in my book even with added damage, cause you have got to be able to take the hit to deal the hit.