hand 1: pretty standard. I probably bet the flop way harder (close to pot size) with so many people in the hand! Also, does a 4BB raise generally get this many callers? Then bet more.

hand 2: How does this calling station/floater play postflop? Does he frequently lay it down postflop to your cbets or does he keep calling you down? Adding a few BB to your PFR's can work miracles here. If they lay it down often, I just keep raising and cbetting. I raise a lot so I face this on a daily basis, and it's not really a problem if it's one guy.. if more than one will keep calling my raises, then it's time to tighten up for me.