I am in the market for a new belt for AIWB carry. I have been looking at the V Dev Gru Megingjord and the LTT Foundation. I am leaning towards the Megingjord since the material used around the back seems to be much softer and more flexible than the Foundation. That is my biggest complaint with the belt I am using now. After long periods of sitting, the top edge starts to dig in to my back skin.
However, I like that the Foundation has a stiff section on both sides of the belt and it is used by the instructors whose opinions I respect most.
I am just looking for others' options, especially from those who have used both.