So I sent that ball back to Redding with invoice. The conversion ball handle Redding has for those who like the ball on their UltraMag Press is not exactly the same size as the ball on the UltraMag Press. I'm not giving up on Redding. Same person answers both e-mail and regular mail. So e-mail is faster.
New handle works great and now looks great.
Correct ball arrived and installed, pictured below. The new longer handle with 10 inch of leverage allows for very smooth and uniform operation of the measure. Uniform arm speed is very easy to obtain throughout powder dispensing stroke. The mechanical leverage of the new and longer handle makes searing IMR 4064 kernels a breeze without any change or pause in the dispensing stroke or arm speed. I am using the new handle and working the powder measure somewhat differently, more like the draft beer tap stroke with the handle pointing up.