Just purchased a slab of spare ribs from Sam's club and thought I would give them a try. As you can see I didn't bother trimming them down. The wife has a nice Cajun seasoning that she likes and wanted to try it, so that is all it is rubbed with. I did remove most of the membrane from the bone side that I was able to get off.
I also put a little kosher salt in some coffee filters on the top rack. From what I have heard, it is a "have to try" and I have the room. If it turns out like I hear I will be doing more.