I run foam filled plastic plates in my PC. Ive never had any problems with comfort although I'm a pretty slim build. I prefer it and it makes a really loud whack when you get hit so you know even if you don't feel it.
I do kinda agree with you. I actually prefer it on the shorter version. I probably need to strip my gun back a bit and it'd look better but I have a thing for strapping as much stuff to my gun as possible.