T-magster Double Stack with a J-clip

I was asked if this design would work well for a double stack mag and then asked if it could be made to use a J-clip for and attachment point. I said "Sure, why not" then tonight decided to put it to the test.

Here's my T-magster for a double stack S&W 469 mag. Note that these mags also work for Kel-tec's P11 which I've considered getting.Here's a picture with it being worn in the 11:00 o'clock position.

Here's it tucked and concealed.I plan on wearing it tomorrow and give it a spin.

Here's a video of it.