ltwguns.com

Seems this happens to me no matter how much I tighten my belt, so I devised this method to prevent it:

Wrap a short, rubber-backed Velcro® strap around your belt just behind one or more of the holster loops.
This will effectively block unwanted movement of the holster toward 6:00, whether sitting, standing, or walking.

For convenience, I chose this product, which I purchased here:



Kinda spendy at $10+, perhaps, but I can't sew worth spit, so I wanted something more or less ready-made.
As a bonus, the attached logo tab provides something to grab onto when mounting or removing the Speed Strap® from the belt.

Note this item does come oversize for this application (i.e., too long), so it must be trimmed to length.
Not counting the logo tab, an overall length of about 4-7/8" fits both Milt Sparks and Matt Del Fatti belts (1-1/2"):



I used a large, high-quality, sharp pair of scissors, so it was pretty easy to cut the Speed Strap® in just one quick snip.
Similarly, I found it unnecessary to fuse the remaining edge with a heat source.

FWIW, I would neither try nor recommend cutting the Speed Strap® with any dull instrument.
For example, a cheap, dull scissor; Use of same would probably do more damage than good.

Brief trial-and-error produced this method for using the modified Speed Strap®:
• Don belt and holster as usual
• Thread modified Speed Strap® behind belt, leaving Velcro® unfastened
• Tighten and buckle belt
• Butt Speed Strap® firmly up against holster loop
• Pull Speed Strap® tight around belt
• Close Velcro® closure

Lastly, here is what the modified Speed Strap® looks like in actual use (S&W J-Frame / Sparks VM-2 holster / Del Fatti belt):



HTH




PS: In addition to its arguably 'high' cost, I found it pretty easy to misplace and lose this otherwise oh-so-clever device. For example, when removing it - and everything else on the belt - when away from what you might call 'familiar' territory. That's right, 'Don't ask me how I know...'

That looks to me live very worth a try-- thanks.

I did a similar thing with paracord. Wrote it up for a post a while back:

http://forum.m1911.org/showthread.php?t=86543

Thanks, Ned.

I should probably file for a patent, but instead I hereby declare the design principle - that being a rubber-backed loop that can be attached to the belt to form a stop, or keeper, the purpose thereof to prevent unwanted movement of holsters or other accoutrements on the belt - to be in the PUBLIC DOMAIN (i.e., PUBLIC PROPERTY). I further declare the design principle my invention, and hereby name it the "AC Loop," or "ACL," which marks are also PUBLIC PROPERTY. The design and marks may be freely copied, distributed, or applied to other products (e.g., rubber-backed holster loops, etc.) without limitation.

Now, let's see if anyone (else) is paying attention, takes the idea, and runs with it. You know, like maybe some (custom) holster maker looking to make a 'mark.'

Lord knows stranger things have happened.

Another good idea, but mine is better.