The X52 is a pretty decent stick.
You'll learn to love all the buttons you can map with the SST.
Problems:
Deadzone:
Is huge - but can be fixed by relocation of the magnets, i.e. put them directly under the hall effect sensor.
Decentering: Was often caused by damaged wires, later models seem to have this issue fixed.
Loss of center still happens, but a short dis- and reconnection of cable in the joystick base solves resolves it.
Conclusion: Awesome stick for the money - sure the G940 will top it, but at a much higher price.
Rem: Get the Basic X52 not the Pro - they are identical.
Plus it saves you money once you consider a 940.
Edit: Is it possible your ST290 just sticks/has increased friction between the spring dish and the base?
If so, triy to apply some grease under dish.
Make sure it's plastic compatible. (Silicone grease or Motorex Bike Grease 2000 f.i.)
