I did take into account gear and augments.
The total for gear (rings, amulet, shoulders, gloves, medal, belt, relic, chest, and hat) was 424 for all low rolls and 638 for high rolls. Gutripper was 408 to 612. Devotions was 201, not counting the axe devotion (60) or the Mogdrogen proc (174).
I had a separate category for augments (42 * 3 for amulets and rings, 1 * 66 for 2H, 2 * 30 for 1H), components (30 per weapon), and 60 for the axe devotion, if present (which it isn’t for either Gutripper or Soulblades).
All of these numbers are base bleed damage over 3 seconds.
I was trying to take into account absolutely everything I could, but only from a base flat damage perspective, and only for %weapon damage for Callidor’s Tempest, ignoring things like increased bleed duration, %bleed damage, procs, minions, crit damage, and other such things that would matter to a real build.
It would not be a massive investment to take Fire Strike. Normally Fire Strike involves Explosive Strike, Brimstone, and maybe Static Strike, which is a lot of points. But those give you very little for a pure bleed build. With Seal of the Void, you get a much stronger AOE than Explosive Strike gives you. So you’re looking at Fire Strike, the base skill only, plus 3 points in modifiers if you’re using a 2H or melee 1H weapons.
With a Sorceress build, getting Callidor’s Tempest is 17 points, and Fire Strike is 12 without the mutator and 15 with.
If you want something else to clean up smaller monsters that’s as spammable an attack, you’re looking at giving up a relic slot for Troll’s Rage, and I think that’s going to be worse on basically every level.
With Fire Strike and Seal of the Void, you also get 2 attacks to proc things with, and you’ll want at least 4 of the devotion procs. I don’t think 12-15 skill points is too much for what that does.
The primary cost of the Fire Strike idea isn’t skill points or the medal slot, it’s the component slot. I don’t think you can justify giving up the possibility of a decapitate from a Bloody Whetstone. Two would be better, even for single target, because it’s more chances to crit, but you don’t need two, so I think the second weapon slot could go to Seal of Blades or Seal of the Void.