You know I love to debate, especially when there is data. Much more on forum, even if only few will read/care/understand, because it stays and spreads.
I feel I have an understanding on how the mechanics work. Its part of my job too, so it comes easy and as far as OR is concerned, I will speak if I know something, I will speculate if I dont. So here goes:
I cant fully remember how loh was in the first stages of forging. I remember it was flat out like all other perks, so 23% on green to blue and goes down to 17% approx from gold to titan - but I am not sure. When loh was proven so strong in the begining of the GK introduction, I think they put in place this formula. Or it was from the begining. Either way, it cuts back from loh going as high as 7-8k for example. The second counter measure was to refine it with a much lower value than other perks (55% instead of 71%). Having seen what loh does, it was an easy implementation to the new refining system.
How it now works, you can be level 120 and have an item with 2500 loh and i can be 150 level with an item of 2500 loh. Both of which at 4* and both I suspect will have the exact same % to the color change. I had tested my formula with spooky in my alliance when he was close to 145-146 and I was lower than 140. Ive also tested it with my mini account and the results are pretty close, when the loh range is close to my existing data (i can only check purple and gold 4* - so its harder to gather data).
Basically this means, loh reacts in a way regardless of color and level. It has a stable 2% increase of normal forge and a color upgrade which is decending at a pretty natural state, but I cant predict what they use. I can use data to reproduce results.
So heading on to damage… since I started collecting data, which was around 125 level, its a flat out 2.3% exactly. And it still is on bronze and silver forging on level 147. I have actually kept a really low level Prometheus bracelet, from perhaps 125 level and tested it just now, its still 2,3%. Now that bracelet I believe was 1100 damage and I have a silver Perseus sword close to 5500. So we have established that, level, value and color do not matter. But it obviously matters before levels 120 or my guess is 115 (they probably stopped or changed it, then).
My guess is that they wanted to either help lower levels, promote forging, or the complex mechanics of damage vs health in battle required this “boost” to even out or give some more edge to the attacker at those stages.
Back to loh and color chage %, it may be that all perks behave that way. For sure they dont take such a big hit like loh (and some other perks) on higher colors AND higher values, but also even though the numbers are so huge (resist can reach 300k unlike loh which is closer to 6k) the drop in % on color change seems insignificant, as we all use the 6,1 to 6,2 factor still…
Again, I love when well planned mechanics are so genious. I wish I could see more of the backend of these numbers.
I might be able to share the formula tomorrow, Im hooked on this stuff…