User blog comment:Mckrongs/Monster Hunter Frontier Season Forward 1/@comment-4120925-20110707203034/@comment-205.56.181.195-20110716231443

Your life bar will shine in blue only when you have Gou weapons equipped. You recieve a RA+1 bonus if you have any RA skill on your set. If you have RA+3, it'll become RA+4. It won't show on your armor skill list as RA+4, but your weapon will show a 10% affinity increase.

-Picante