1. What controllers are these joysticks mainly compatible with?
The GuliKit Adjustable Tension TMR, model No.: NS55.
NS55-PS5: For PS5/DualSense Controller and PS5 Edge/ DualSense Edge Controller.
NS55-PS4: For PS4/DualShock Controller.
NS55-Switch Pro: For Switch Pro Controller (1st Gen).
NS55-Xbox: For Xbox Series Controller and Xbox Elite Series 2 Controller. (AKNES did not sell the Xbox version at retail, except AliExpress store.)
All require soldering.
2. How to install the joysticks?
For PS5:
https://aknes.com/products/gulikit-ns55-720-tension-adjustable-tmr-joystick
Or
https://www.youtube.com/watch?v=KtXbJrJoc7E&t=76s
For others: Video in progress.
(Credit to BaroFix)
3. This product was tested by AKNES community members, what were the results?
1) The tension on both joysticks is inconsistent in the same position on some units.
2) When adjusting the tension, do not rotate it all the way to the lightest setting, otherwise the cylinder will fall out. (You can reinstall it.)
3) Do not forcefully remove the dome cover, as this will damage the product.
This makes installation difficult on the Xbox version.
4) On the Switch Pro version, the first version had an issue with friction on the front of the controller, which has been fixed.
(Credit to @Volanaro (PUDDLE MXN) and @Paulo)
AKNES is selling the fixed version.
5. The R3/L3 click travel is a bit long, and some buttons have a double click feeling.
Credit to all testers in AKNES community.