Is there really need the sticky black traction slipon joystick?
I removed the slip on.
Otherwise stowing it the hinged roof won't shut on it.
But is the traction slip on truly needed?
My thumb tip engages only crown serrations joystick, not engaged onto said sticky traction black slip on.

Hello and good day cutis. Thank you for reaching out and for sharing this information with us today. The black traction slip on on the remote controllers joystick is for additional grip and for additional control when using the said DJI Remote Controller. Thank you for your valued support.