So... for what it's worth I think I have a fairly good spatial reasoning ability (probably from playing lots of games that involve building things, math, and building things as a kid), but I don't have any imagery that comes with it, it's more like I'm thinking about the relative position of things in my head (e.g., this is to the left of that, which is behind that, etc.,)
Below is a video of a simple CAD project. See if you can do it in your head. I think my spatial reasoning is decent, but I needed to learn how to visualize objects to help me reason about, e.g., what a specific extrusion would result in. If you find it easy, then great!
