Advanced metrics so far this season paint an interesting picture of David Price and Felix Hernandez, two 30-year-old former Cy Young Award winners who reportedly have suffered a drop in velocity this year:
DP 7 GS, 6.75 ERA, 2.93 FIP, 2.95 xFIP
FH 6 GS, 2.21 ERA, 4.11 FIP, 4.32 xFIP
http://www.fangraphs.com/statss.aspx?playerid=3184&position=P
http://www.fangraphs.com/statss.aspx?playerid=4772&position=P
The samples are too small to be particularly meaningful, but they're interesting nonetheless.