Fixturing with magnets.
The magnet on the top cap of the fork is the latest discovery for me. Holds it to the leg no matter which way I tip it! So easy to braze now.
These pivoting magnets from I can’t remember are great for fixturing fork legs to crown pieces and tacking while upside down. I use these a LOT for various things that typically used to fall and clang on the floor while balancing.