Tanks should always meld at least a little bit of direct hit, even a 1% chance of doing 1.25x damage is miles better than a 0 percent chance. Also 12% is a respectable amount and given that it stacks with crit means the damage potential is much better than det. Unless youre seriously worried about dying (ultimate prog) then you should just meld crit direct on tanks, regular savage doesnt justify tenacity, so the stats that give you the most damage are king