This is a little thing I found out yesterday while purchasing my T9. You know how you can get a refund for items?
Well I bought the shoulders, equipped em, and then took em off and got the hands to compare which would give me a better bonus, I equipped the hands and came to the conclusion that the shoulders gave me a better bonus. So I sold the hands back to the vendor and equipped the shoulders. I checked my achievment status and it now says I have Hands and shoulders equipped when I only have shoulders. Hence making the Epic Achievment easier
Can't post screenshots atm for a few days, but this is easily tested so have fun.