The slide is its processing tip. Nothing wobbles, not a game when moving. What bothers me a bit is the readability of the (very exact) scale. The mm-strokes are really turned out very small, so it makes trouble, read the carriage moving it. As the edge of the slide towards the scale is still a little rounded, it is difficult to aim accurately slide and scale. This is regulated much better on many a vernier caliper. Since it is for Stacking quite cumbersome in 1/2 mm increments - and then perhaps even outdoors in poor Light Receives Nissen ......
Otherwise, there is nothing to complain about. But because of the scale only 4 stars