I'd keep LoDuca. It's always nice to keep another C around to make up for off days, usually I turn that guy over quite a bit. I just dropped LoDuca (have Kendall) to grab Hammock, hoping he plays monday, then I'll grab LoDuca back unless somebody grabs him off waivers. Either way, I need to start making up as many games as possible at C to gain stats. I've peeked ahead and LoDuca has a game when the Pirates are off in a week or so.
I'm pretty much on pace at all other positions. I'm 9 games off the pace at C. I'm pretty diligent about hitting my limits, and not going too far over on IP.
Just a tip! All those missed games add up. You might lose a bit in AVG, but you gain in 4 other categories. Getting a C that' plays everyday and bats in the top half of the order is big. It doesn't have to be Piazza, but LoDuca and Kendall are good options in later rounds.
* Steroid induced record