Imagine having an item that is not at full Item Power (maybe from 880 to 920) but perfect in the stats you want. And imagine being able to transfer the 925 Item Power from another whichever item (or at least of the same type and rarity) into that perfect object. You will have your perfect item with the max Item Power!
In Tier 4 End Game I find it very annoying to drop items with a lot of potential but that don’t have full Item Power. Knowing that I have to wait for 925 as Item Power before I can work on it makes character building less enjoyable for me. Knowing that I’m already working on a good item whose power I can improve in the future, on the other hand, would satisfy me because I wouldn’t be wasting time on an item that I would have to throw away. It would give me the feeling that I am already making progression and something useful instead of waiting the 925 Item Power.
With the Gear Transfer this problem would be solved, without taking anything away from the grinding as you would still have to find the perfect item (or almost). On top of that, you’d still have to reach the highest character levels to drop items at 925 as Item Power, so you always have to grind.
Let me know what do you think about it.