Kimmel's bagged for me, about 5-6 years ago. Mud balls, rocks, BOULDERS, wire, plastic, netting, tree branches, root systems .... all in a 50lb. bag! What a mess. I don't like paying for crap that don't burn, so I wasn't too happy. The first year I burned was the worst. Plus, the amount of ash limited me to 12-15 hour max. burn times. Lighting it off gave smoke with a bituminous smell at first. Plenty of heat, but everything else about it totally sucked.
Blaschak back in '09 was a dream come true - powdery ash, no unburnable junk, with instant 24 hour burn times or longer. The past couple seasons I ran into camouflaged rocks that jammed my grates wide open at just about every shakedown. I was ready to take a sledgehammer to my stove! SOOO AGGRAVATING!! I bent the crap out of my shaker handle from kicking it. Was hit or miss - sometimes I could bust it free ... and other times (usually at midnight when I wanted to SLEEP) I'd have to dump the fire and start from scratch. Was getting sick and tire of that crap! Must've burned 4 tons of it like that. I was at the end of my rope with the hand fired before the season even started. Luckily towards the end of that batch, that problem went away.
This year is my first with at stoker. So far I've only run into a few small pieces of wood, and 3 stove coal sized chunks mixed into a few bags out of 2.26 tons of their rice. Those were easy enough to smash into pea/rice size to burn. Glad I caught them before they did any damage to the stoker motor. They were so big that they just spun around endlessly on top of the paddle. Night and day difference in effort over running the hand fired though. Don't miss shaking a fire one bit!