master wrote:That's good that they roll well. So the first thing that comes to my (engineering) mind is binding. The next thing to do is try sliding the standard by pushing on the truck assembly (not on the main upright). When you do this, note if the truck twists, or is already twisted relative to the base that it runs in. If it is twisted, straighten it and try pushing again. If it is already straight, does it slide smoothly or is it still hard to move?
I tried pushing on the trucks and it was very difficult to move. Harder than just pushing on the upright. I did not notice any twisting.