Yeah, it depends on what you mean by pointer. In our Gauge product, a pointer is something that moves along the associated scale based on a specified value (e.g. a needle on a speedometer). Tick marks and labels are usually statically placed in a single location (e.g. at 55 mph).
If you just need a static tick mark, then what you found is correct. If you need a pointer that moves around you can use a CircularPointerMarker with MarkerType set to TriangleSharp. You can then move it away from the center point any distance by tweaking ScalePlacement and/or ScaleOffset.