The Speed Mount is an extension of the flash options by using the standard ports (Bowens etc.) extremely helpful. Thanks to the horizontal mounting of the flash, the distance to existing additional umbrella holder is significantly smaller than in the conventional umbrella holders. This results in a particularly symmetrical light displays in the screen. The processing and haptics is alright. Wobbling on Spigot I did not notice.
On a special treat I'm just encountered when "playing around": The base rail is the default profile for flash shoes. Removes one can flash holder to attach two flashes parallel (see picture)! For a double flash holder you have to otherwise spend again about 25.