The head and feet are the two pieces I'm most interested in comparing yes. Particularly this swap
Adhemar Bonnet +1 and Adhemar Feet +1
versus
Plunderer's Bonnet +3 and Mummu Feet +2
Originally I made the swap from adhemar to mummu and relic because of the accuracy. If I went path B on adhemar hat and feet my evisceration set was STILL 127 accuracy lower than my tp set, and that's pretty freakin huge, and I hated the thought of losing close to 170 accuracy going with path A. However, the relic head and mummu feet not only provide 59 accuracy more than adhemar path B, they also have 5 more attack (so essentially the same) and 18 dexterity, while only losing 3 crit rate and 6% crit damage. I originally swapped them in for consistency, but in my actual time using them I've been more than a little impressed with the damage output. I'm tempted to say that the 18 dex they add is enough to overcompensate the 3% crit rate at 6% crit damage. I want some hard numbers though, but I've swapped between both builds and I like what I see with the adhemar LESS than what I see with the relic and mummu. I know that eyeballing isn't reliable enough so that's why I'm firing up kparser and collecting some real data. But statistically the swap makes sense to me. Here's the combined stats in isolation
Adhemar bonnet +1 and Adhemar feet +1
34 strength, 68 dex, 40 accuracy, 70 attack, 6% critical hit damage, 8% critical hit rate (feet and set bonus combined)
-- 91 accuracy and 104 attack with dex and strength factored in
Relic hat +3 and mummu feet +2
47 strength, 86 dex, 86 accuracy, 62 attack, critical hit rate +5% (mummu set bonus to dex considered)
-- 150 accuracy and 109 attack with dex and strength factored in
They're actually a lot more comparable than you might think at first glance. Adhemar +1 focuses on the crits more than relic and mummu, but relic and mummu just offer a lot more raw stats. If strength isn't capped the fSTR is more base damage in addition to the 18 dex mod, and I'm finding from personal experience that it's significant enough to notice just eyeballing.
I'll report back once I have some hard data. Like I said, at the moment it's theorycrafting. Kparser will provide some definitive data.
EDIT:
This is what I'm currently using and what I've theorycrafted
ItemSet 348286
I'll compare it against adhemar bonnet +1 and feet on the path B rout. I'm really loathe to want to go path A, because like I said, path A would be 170 accuracy lower than my TP set, and that's enough to start whiffing on swings.
EDIT: The mache earring +1 swap is another selling point I wanted to test out. I may actually do sample sizes closer to 70 apiece and throw in that as an added data point. The focus of this testing is meant to revolve around evisceration's dex modifier.
Essentially I want to narrow down the point it becomes better to focus on dex and raw stats over crit rate and crit damage. Evisceration used to be 30% dex mod, but since the overghaul in 2014 it's using a 50% dex mod and from my experiences adding a lot of dex really feels impactful on the damage output.