I love love love the analogy of having one short and one long leg. I'm going to use that.

My working memory is obviously substantially different from my husband. He has an amazing WM, whereas mine is clearly limited. A bottle neck is a good description of how I feel with some tasks.

When I think about WM I see his ability to juggle hundreds of little balls in the air, draw conclusions and make unusually accurate predictions with ease. I, on the other hand, can only juggle maybe a few or a dozen new balls at a time, depending on how new they are to me. Once I have those patterns learned I can use the information very well and even add a few more balls to my array- until then, my vision is too narrow. While I know there are balls falling, I cannot keep them in my vision. This can be extremely frustrating when I am in new environments. Later, I can never figure out why I found things even remotely difficult.