Need help deciding between procs for dual blades

For my Broadsword character it was pretty simple, I went with the def debuf set proc. But for dual blades I mostly have to stick to melee damage sets.

I can't figure out the math, is the 15% change to fire on touch of death better, worse, or equal to the 20% chance to fire on mako considering the difference in resists between lethal and negative damage?

It's really a matter of preference. I prefer the 20% for lethal.

One can still use the -Resist Proc in Dual Blades (two of them infact if you go for the PvP -Resist Proc for Sweeping Strike).

After that, I'd say Mako's for the 20% chance for Lethal over the 15% chance for Negative.

Like the new avatar BrandX. =)

Does anyone know the math though? Like How much averaged per attack is done by Mako and how much by Touch of Death and then assuming xresistance to lethal and y resistance to negative across the enemies, one has a (presumably insignificant) advantage?

It's so much easier on a tank too, they can run 20% chance to fire psi damage procs thanks to taunt in everything. Nearly anything that resists Psi takes bonus damage from lethal so it's a perfect pairing. Heh. I think robots are the exception. buggers.

I believe the average damage is around 72 per hit when the proc fires depending on resistances then just multiply by your %, ex: 72dam/proc x .2 = 14.4 average; TOD is 15% because it is less often resisted. Now depending on your attack chain, you will have to factor in how often you use that attack - thats the best way. I'm sure someone else has a better way tho.

ToD is a 15% chance, Mako's a 20%, and they do the same amount on a proc. So averaged over time, ToD is better only if the enemy has more than 25% lethal resist and 0 negative energy resist. Since some enemies do have NE resist, and not all enemies have lethal resist, Mako's should be better for overall gameplay.