Anyone have any recommendations on preventing the curling of the bottom portion of a print on the C2? Seems like every print I perform at least 1 corner is curling up. Kind of getting frustrated with this printer at this point. First the z alignment issue with having to move the bed around (which im still not convinced its fixed but can ultimately solve the problem with the current work around). And now no matter what print I attempt a portion of the bottom is curled. I hope there is a solution for this, the $700 I paid for this thing I can't justify keeping it with the curling problems. The bed I can deal with but if I can't get flat surfaces to the prints the printer is pretty much useless to me.