I am in the process of reassembling the z-axis after removing it to drill the four holes to mount the CNCFUSION CNC conversion. I am hung up on the gib adjustment. I've followed the LMS manual for adjustment of the gib, but there seems to be no perfect spot--either it is too tight and the head won't move, or so loose that the gib slides out from under the head when I try to move the head. I am obviously doing something wrong, but what?

Thanks in advance for your assistance!

Roger