I ended up buying a 3 lb. rack of St. Louis style (trimmed) spareribs at Whole Foods. I was there and they had them, so I got them, even though I was looking forward to going to Paulina.
I started my fire using two starter chimneys full of charcoal briquettes and then adding a couple of oak logs once the charcoal was burning well. The fire probably was too hot (275-300) for a good bit of the first hour the ribs were on, but probably averaged somewhere in the 240-260 range over the remaining three hours.
I used a dry rub on the ribs and periodically mopped them with a mop sauce I quickly concocted of beer, vinegar, melted butter and some spice rub. I mopped them no more than four times, in order to open the pit as infrequently as possible.
The ribs themselves were georgeous to look at and were pretty smoky in flavor. There was a modest red smoke ring in the meat as well. Those were the positives. On the negative side, I think my mop conconction was a bit too acidic and the ribs were not rubbed with enough salt. The flavor mix of the rub, mop, and smoke wasn't ideal. It wasn't unpleasant to my taste, but it just wasn't what I was shooting for. Unfortunately my wife, who doesn't like smokey food in general, found the ribs just way too smokey for her tastes. My daughter (2) ate a little of them and my son (4) thought they were great. The other negative was that while the meat was clearly cooked and wasn't dryed out at all, it hadn't become as tender as I like. I don't like ribs in the FOB category, but these required more chewing than I would have preferred. Probably a by-product of cooking them too quickly at the beginning when the fire was burning hot.
So, I would love to hear suggestions on what I could do better to get a nicely smoked and tender rib that isn't falling off the bone. I suspect a combination of a cooler fire and wrapping the ribs about 2/3 of the way through the cooking time will probably do the trick. I am also going to go heavier on the salt in the rub. I may skip the mop this time.
Clean up is another issue. I drained the water out of the bottom of my pit and rinsed it out, per the mfg instructions, which generated more nasty grease and smoke infused water. I now have a big bucket of the stuff in my back yard, with no disposal plan. Any suggestions?
On a brighter note, on Sunday I made a beer can chicken on my Weber that came out perfectly. In fact it was so good that I almost second guessed my purchase of the big pit.
Almost.