I was also comparing these two, and ended up with the Cereal Killer mainly because of the use of ball bearings rather than sleeves.
The mill is mounted into an old cabinet with an old but restored 1940's 1/4 hp motor, reduced from 1750 down to <200rpm using 1.5" and 14" sheaves (about 9.3 : 1). Used a cogged belt to accommodate such a small pulley.
The gap is set at about 0.035", and with that amount of reduction, there is plenty of power at the shaft, so startup under load isn't a problem and crushing grain doesn't even slow it down! :rockin:
One little hassle noted is that since the thing is from China, the drive shaft is not 3/8", but 10mm, so I had to mod my 14" pulley. A little bit of a pain, but solvable.
I was having the same problem with LHBS crushers leaving a lot of whole kernels and getting efficiencies in the 50-60s. Not anymore! Did my last two brews with it, and it works great!
Scott