Kydex belt sheath retention

[sonil]

OK i make mostly balisong sheaths and neck sheaths... since they are intended for inverted cary i make them pretty tight...
Then i started making a belt/neck sheath and i set it up less tight and when you push the thump rump it extracts easy,if you don't(push) it`s a tad tight(in the extraction).Then i saw few comments about them that they are tight so i made the next butch less tight....
i check the sheaths 2 ways...first i string a piece of paracord in the bottom eyelet and shake it, then i push on the thump rump if it`s difficult to extract by pushing i ease up till i think it`s easy enough
So my question is how you guys check "tightness" on your sheaths and
How you know it`s just right?

 

[dtrap]

I usually ask the customer their preference. I ask if they prefer a nice tug to draw it or just a smooth light pull. It also depends on the type of activities they will usually be performing when carrying. If they are hunting or hiking or something of that sort I usually reccomend a bit tighter fit but if it more of a casual carry I will often reccomend a bit lighter. I still usually set most at what I feel is pretty snug and tell the customer that after wearing it a few weeks if it is not to their liking then to lightly heat around locking point with a hair dryer. I am sure to explain to them to be very sparing with the heat and to let it cool between adjustments and be very careful.

 

[Mike Sastre]

I usually set the tension for the intended use, then do multiple draws at varying speeds to test it. If the customer's idea of the tension needed is different, I have the return so I can set it exactly how they want it. Too easy for someone to overadjust.

 

[theHobbyist]

When my equipment is cooperating with me I invert and shake violently, or some what violently... to simulate walking, running and jumping in place (yes I just quoted a that movie lol). While I rarely ever am in a situation like that I do squirm in to tight spots and crawl spaces, and have run into a snag or two. I don't like it when something else pops my knife out. There's nothing like the feel of a pop, then having that nice cool blade on your back or on your tummy when you're backing out of a crawl space or from the ceiling =\.

 

[Mike Sastre]

I also invert and shake vigorously to check for retention and any rattle,