VKB-SIM

On the panel showing in your third screenshot check the Vs and En boxes for axis 9, then press the Set button under the Action tab.

Yup, the USB to JST cable would help with that.

Sorry, but we do not plan to release a metal KG12 grip.

You'll only need the FSM GA, a single GNX HID Controller (it comes with the USB cable) and some way to attach the device to your desk, as it needs to be mounted in order to get it stable.

The stock is what is currently listed on the website. If a product is not there, it means it's out of stock. It's out of stock because it's sold out, not because we want to sell other products or squeeze more money; we're the only joysticks maker who didn't increased the out of factory prices since ...

Yes, we'll have the upgrade out at some point.

The mounting screws are included only in the MFH combos. They are 30mm for the top and 35mm for the bottom position on the MHF, but if you have your own mounts make sure you're not using screws too long, as they might damage the boards inside.

Check if there's any metal residue stuck on the magnet. Also, you'll have to reset to default, reinitialize and recalibrate after taking it apart.

Upload a screenshot of VKBDevCfg so we could see your firmware version.

Just run VKBDevCfg, select the device at the top and click the Default button under the Tools tab. After the restart you'll get a popup asking to configure; click Yes.
Calibrate afterwards following this guide.

This has been fixed on Discord by reflashing an older firmware, right?

We'll notify the local rep right away!

The newer UCM systems are coming with the drilled plates. Please get in touch with the local vendor and see if he has them in stock.
It's really easy to drill holes in those plates though, it's soft metal.

Same connectors, so you could definitely use any you like more.

Just go in game's setting, find the strafe fwd/bkwd control and assign the pitch axis to that.