Robert is the king of customizing.
He made a vest pocket holster by making a panel the size/shape of the pocket lining and placed the holster such that it was maintained at the level of the zipper opening to keep it upright and in place.
I outlined a pattern on a piece of newspaper of the pocket lining and zipper placement and sent to him.
Here it is - holster & panel inserted and pocket all zipped up:
Unzipped, the holster sits in the perfect position for easy access
Drawing from the pocket - smooth as silk
He also made a panel for me to use for stabilizing my IWB upright if I choose to carry in a bag or cargo shorts.
There isn't many ideas he isn't willing to consider.