>>350711706
Buy new wands. I don't remember exactly, but I don't think the knuckles have tactile actuation for gripping. You can also get more interesting hand tracking with the Vive Hand Tracking SDK.

Here's a short video of that:
https://www.youtube.com/watch?v=8Hfp3ujuih8

Use the controllers for actions that need low latency and high precision, and then the hand tracking for fun. The index controllers are a combination of these two options I have given you, while being inadequate at both.

I'll only say that maybe the thumbstick is cool on the knuckles, but I am not sure if it has drift problems or if it could come callibrated incorrectly. Really, you should just get new wands because if you end up with knuckles that have callibration problems, it is just annoying to deal with that.