Some tips I found useful below. Please get in touch if you would like to share any of your own tips.

Concave/Convex Joint
An extension of the curved joint in both directions. [video could be shorter, but you get the idea!]
Some tips I found useful below. Please get in touch if you would like to share any of your own tips.
Concave/Convex Joint
An extension of the curved joint in both directions. [video could be shorter, but you get the idea!]