I have a Kramer IWB holster for my xde 3.3" in 9mm. I was looking at Tulster holster website and it lists same holster for both the 9mm and 45 acp models. So I am thinking my existing Kramer holster for 9mm would work with 45 acp model. Both Kramer and Tulster holsters are tightly fitted. Any info appreciated.