Here is what I want to know:

What can we do with top-tier crafting gear that we made ourselves? (Not the ones purchased with red crafting scrips).

It seems like the only gear which can be augmented is the gear purchased with red scrips. So does that mean we cannot improve upon our top-tier crafting gear unless we buy the splendor vendor gear first?

So...it seems like making top-tier gear instead of buying it with red scrips was a waste of time since we can't improve upon it now.