I have a DJI RC-1N controller(s) which I use with my Mavic air 2 & mini 3 pro.
I was going to buy some spare joy sticks for it just in case I ever lost any in the field and ruined the day.
I have been flying drones for 4 years and never lost one (joy stick that is) so I tried something that works perfectly if that situation ever occurred. I know they are relatively inexpensive but rather than purchase spares I just put a few 4mm x 50mm machine screws in my bag to use if ever required, then purchase replacements as required when I get home.
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