Review on Onyehn 2-Pack Xbox One Elite Controller Replacement Kit with Thumbsticks, LB RB Bumpers, Triggers, and ABXY Buttons Mod – Includes T6 T8 Screwdriver Repair Kit by Mark Adlesh

I had to modify parts. I bought this pack to get new bumpers for my controller. I kept taking it apart and reassembling the controller, but the bumpers got stuck every time. Both of the new components included in this pack did just that. Luckily I narrowed it down to the exact problem. Both parts where the keys are pressed directly were too long. I ground off about a millimeter (which isn't much if you want to try it yourself). After that everything worked fine. It worked but I was concerned about the quality control of the other parts if I had to use them in the future. Unless you are tech savvy and unable to troubleshoot unreliable parts I would buy from another supplier. I am attaching an image for further clarification. The upper component is polished, the lower one is not modified.