Sorry, late to this thread. Looks like your latest attempt is getting there. We all have our own way for smoking, and no one way is wrong, you just have to a) find what works for you on a consistent basis, and b) keep your mind open to other ways in case your timing gets thrown off (Need ribs in two - three hours? It can be done).
My normal way of doing SLC ribs:
Fire up my 22.5 WSM with KBB and cherry chunks (I like the color it gives them). While it is coming up to temp, I will pull the membrane and rub my ribs. We like spicy, so I have a rub recipe I found on the web that I make and use (
http://www.deepsouthdish.com/2010/03/southern-style-dry-rub-pork-ribs.html#axzz2vQH31wwA)
Once the pit is stable around 275*, I start:
12:00 - Throw ribs on, close the lid and don't worry about them for 2 hours.
14:00 - Grab ribs, take them inside, foil them (nothing added), take them back out, and put them back on the smoker.
15:00 - Grab ribs, take them inside, remove foil, take them back out, and put them back on the smoker.
15:30 - Start checking for doneness via the bend test. Pick them up at one end with tongs or gloved hand. They should bend almost 90* and the bark across the top should slightly crack.
The ribs are usually done prior to hitting the 4th hour. Notice that my times aren't true 2-1-1, but I keep with the time to perform each action. I have also done the same without the foil step. Easier for me to skip the foil when cooking more than a couple racks. They turn out almost as good, just not quite as juicy.
I also do not spritz or sauce my ribs, but serve sauce on the side for those that want it. Some times I feel like a nut, some times I don't...
Good luck with the next test run. Keep a log of what you did each time until you get what you like, then practice duplicating that cook.