Hardware aftermarket joycon sticks, drifting from factory common??

[rip-it-up]

Hi I've around 40 joycons I need to change the stick on. ( been putting it off)

I've just installed a new stick, and it didn't work.
so I installed another and it works but is miles off center.
I tried to recalibrate and that didn't work.

IPA it and it works perfectly for 5 mins and it drifting again.

Is this common for aftermarket sticks?
I have around 20 sticks from the same supplier?

can anyone recommend a decent supplier of sticks. I'm in UK, but I don't mind shipping from China if the quality is decent.

thanks in advance


just a little update. Ive done both sides now. I IPA them, and updated the firmware to the latest joycon software.

seem to be playing nicer now. think Nintendo possibly widened the dead zone in a update.
ill have to wait for the alcohol to dry fully before knowing for sure