I got a LEM #5 last year. But I have to say that the amount of force between the blade and plate is CRITICAL. Even with a brand new blade and plate if there is not enough force then sinue or whatever will get between the blade and plate and it will not cut no matter how hard you push. But once you put just enough force it is like magic. For instance, last week first pieces clogged, like the first .25 lb, but I cleared the blade and plate and tighted till there was just a hint of motor strain and viola- 20 lbs of burger, ground twice, in less than 15 minutes. That blade/plate tolerance is controled by the grinder head end cap, but if the bushing behind the auger wears too thin you may run out of sufficient adjustment at the cap to get the force you need for proper cutting. When I have the force right it doesn't matter what you put in, and I suspect that many cheaper units suffer the same problem as the LEM that I have ran into- User Error or improper adjustment or worn bushing.