I'm hoping it's just a down year power wise and with some of his injuries he just went with trying to get a hit rather than kill the ball. It just seems weird he only has 4 or 5 homers. I never thought he'd be back to that 30+ Silver Slugger level. I just hope his back isn't giving out but like you said he doesn't seem lost and doesn't look like he's in pain or whatnot. It won't be horrible if next year he only hits a few as long as he can carry that OBP and high average. I say this and watch him go on a tear the last 2-3 weeks of the season like Bautista did a few years go.
I'm partly nervous since Colby is all but gone so we'll lose his power and Melky who knows if they'll bring him back so we'll be down some power.