Ragebound Harness nerfs character musculature

Scarefish

So I've been using Ragebound Harness for quite a while now when a friend told me that it causes your musculature to shrink. I tested it out myself and found that the upper arm musculature shrinks significantly with this costume. It's hard to show in images since the character changes angle while idling, but it's quite clear that my character has huge deltoids normally, but has average-sized delts when using this costume.

Scarefish

Someone said they look the same, I took more effort to line the angle up between both outfits. The arms are definitely thinner with Ragebound Harness. I think it is only the upper arm (Deltoids, biceps, triceps) which are affected

Dragonredux

I can also confirm that your deltoids shrink when using the costume.