There are currently 39 useful TT mats for conversion. 8 = from 1-3, 12 = from 2-3 and 19 = from 3-3. All blue, green, gold and red mats from the same
instance and color gives the same amount of EC after conversion.
My suggestion is to make TT mats from the same instance and color to be the same item.
Ex: Instead of having 12 TT mats for 2-3 there would be 3 = Blue Orbs, Green Orbs, and Golden Orbs. The same could be done with the other 2 instances.
By doing that 39 mats would become 10 and that would free a lot of inventory space for everyone.
OBS1: Sorry for my bad english.
OBS2: If i'm making a mistake, i'm very sorry .