I have a problem when I want to install the original organic-bracket.
There is no place for a second screw on the wall, so the hole "hand-made" was really less resistant and the bracket broke.

I model a new one.
There is 3 differences:

• a second hole. I copy the design of the bracket existing hole to keep the design compatible.
• a chamfer in the 2 holes to allow the screw to have a good contact surface
• I enlarge the hole to 4mm (originally something like 1 or 2 mm) so the wall screw can be larger.

This bracket is in place for 2 weeks now, with spool on it (something like 4/5 kgs) and everything's alright.