The problem is you're (apparently) ignoring parts of my quote... the item level of your "test" suggests a character around L60.
Firstly, as quoted, you won't see a big difference (or any) at that item level from ilevel becase the formula is a very gradual bonus, and it's based off your character level combined with your item level compared to the "expected" item level from that expansion, and in that particular character level, you only get a tiny bonus:
Code:
MaxPlayerLevelsByExpansion = {69, 79, 84, 89, 0, 0}
IntendedItemLevelByExpansion = {65, 115, 200, 346, 0, 0}
It expects your item level to be above 65 if your character level is 69 or under... if it's above that amount
while fighting equivalent level mobs (because there's a different formula for significant differences in character vs mob levels), then you do
Code:
AlternateDamageDealtFactor = 1 + 5/3*0.01 * (PlayerEquippedItemLevel - IntendedItemLevel)
or in your case
Code:
AlternateDamageDealtFactor = 1 + 5/3*0.01 * (92 - 65)
which, in your test example would basically be a tiny difference.
However, for an 80 twink (this forum's bracket), or a 78 twink, the expected item level is VASTLY lower than can be achieved by twinking.
For example, for a L79 character, it expects an item level of 115 and my L78 twink is item level 308... almost 3x higher than expected, so the formula would be much more beneficial:
Code:
AlternateDamageDealtFactor = 1 + 5/3*0.01 * (308 - 115)
Incorrect, it still works for normal dungeons as of 7.3.5... at least for the damage reduction part (haven't tested the damage done part, but not sure why they'd change one part and not the other).
Take a L78 twink (just tested it on a ilevel 308 one) into HFR and you can test it yourself. L77-L78 mobs (and L79 bosses) will do between 16 and 45 dmg per hit.
I'm almost done with this topic, I'll try to test the damage part later though...