I've been using a lot of edge loops in my models lately, and I've faced an issue with how to keep the edge loops CLEAN, and same distance from edge for several different areas, especially for something that you want to subD or smooth.

Imagine trying to create a star. You want to add edge loop to the 5 points. Since they all are separated, you individually have to add edge loops to all 5 points, however they may be off just a little bit.

I'm a nitpik, and if it's something that is mechanical/non-organic, it would make sense to keep it exactly the same.

How do I "copy" the distance of the edge loop to another edge to keep it consistent?

I know you can do it for one side of a model, and use instance and it will copy to the other side. That's not what I'm looking for. I'm talking about models that are not created as halves, or are "not created equal".