An idea for Space Marine pauldrons: perhaps cloth instead of metal?

One thing that has always bugged me about Space Marines is their pauldrons. You can't realistically articulate your arms with those things. They're not segmented like real pauldrons. If you've painted Space Marine minis, you've probably known how tricky it is to stick pauldrons if the figurine has a raised arm pointing at something. And this is also a problem in cosplays I've seen.

So I propose that we re-invent the Space Marine armor such that those pauldrons are actually cloth shoulder covers. The real pauldrons are underneath and they're segmented just like in real medieval armor. The cloth covers are made from some thick heavy material such as nylon or leather, which can be molded into a dome shape. When the cosplayer is standing still with his arms at his side, the shoulder covers will look just like the pauldrons in 40K art.