Originally posted by JustRace
I'm using the 2.5mm with it's intended plastic piece. It's not binding and is very smooth movement. I haven't tried it with the 3mm plastic but I would think it would cause a little bit of a slop.
That's what I thought too because I'm using the 3mm with its intended holder and it seems smooth. Not loose but smooth.
Maybe D tightens the screws down enough to prevent slop.