LOL thats why I quit buying balancers, not worth the money the finger balancer isnt 100% perfect but its real close the 1/8 piano wire shaft I made is balanced I had a topflight magnetic balancer and it wore spots in the face of the magnet making it not balance right plus when you used the set screw to set the magnets they were never straight and the durlbro balancer with the metal disks works good for bigger props but small ones its not sensitive enough razor blades work ok just have to make sure there level...Its hit and miss with all of them..
the one you have in the picture is nice looking and from the same idea as mine I think you should make some shafts for it!!