I agree. I just put them in front of a fan.
You might want to reduce the size of the belt loop unless the customer asked for 1.75" because it will cause the holster to move around. 95% of my holsters have 1.5", 4% 1.25 and only 1% 1.75. You can also bevel the edge on the slots to make it easier and less sharp on the belt slots and aids in slicking the belt slot.
Hope this helps. Very good look and functional holster all in all. Keep up the good work. :D