Lo! I opened Pandora’s box, and the contents which has spilt forth defy the comprehension of my mortal mind.
Allow me to slowly work my way through this. 
Basically it’s about how elemental -> Something, goes before Fire/Cold/Lighting -> Something.
So if you hypothetically have 2 items that give you 40% elemental to Acid and 60% Cold to Acid you end up with:
40% Acid
+
60% X 60% (Remaining) = 36% Acid
for a total of 76% Cold to Acid.
This is for items so they are in the same conversion phase.
Since voidsteel modifies the skill to have the conversion, I assume the skill and hence voidsteel conversion goes first?
But isn’t this conversion from an equipment?
I’M SO CONFUSED.
EDIT: I understand how conversion works, and everything else in the order of conversion except for the last bit: Equipment and buffs vs. equipment, auras, and passives.
Can someone please expound on this: ‘It appears twice because the first mention is for conversion the second is for damage modifiers’
It does go first. Skill modifiers are basically the same as skill transmuters such as Frenetic Throw.
that makes sense.
THAT. HELPED. SO. MUCH.
Bless your soul, sweet prince.
let’s sticky that:)
Done.
10/chars
Wait…so this explanation:
The order of events for Conversion is as follows: Base Skill > Skill Modifiers > Conversion on the Skill or Transmuter > Conversion on Equipment and Buffs > Equipment, Auras and Passives
means something like:
The order of events for Conversion AND BONUS is as follows: Base Skill BONUS > Skill Modifiers BONUS > Conversion on the Skill/SKILL MODIFIERS or Transmuter > ALL REMAINING CONVERSION > ALL REMAINING BONUS
?
no, transmuters are first, so are skill mods that totally change conversions
Now I’m confused. I thought you got the skill line bonuses before conversion.
So for example the +fire and +aether on Disintegration comes before the conversion from Tainted Power transmuter?
lol, that’s different. Yes. The way they were listed confused me
So that’s a yes to the damage bonus taking effect first then?
Sorry to be confusing lol, It’s taken me a while to wrap my head around the conversion mechanics. Thanks to this thread though, I think I’m on top of it…time to head to grimtools 
Transmuters and skill modifiers are the same things.
Yes.
if you mean like % dmg from blindside to blitz yes
Seconded. Really appreciate the helpful replies!