No, shields are armor. They're even listed under armor in the AH, to my recollection. Think of it this way: you can switch out things in your hands while in combat.
I realize that:) I just wanted custom categories, since that's what I had with baggins. Searching as Tuller suggests does work, I just wanted to exclude shields from armor, and include them in the weapons tab.
After redoing my Ui for fun I decided not to redo my whole baggins settings. Therefore a few suggestions for the sorting options Tuller, once you decide to make them more customizble:
1) I like the "new" feature from Baggins, this would be a great filter for combuctor as well to see all the new stuff with one click for vendoring/sorting in to the bank/mailing to mules etc.
2) Most of my inventory is made up with equip sets saved in one of the setchanging addons (ClosetGnome, Wardrobe, Itemrack). Sorting by armor in cumbuctor is not really helpful for me right now because there are still 60 items left in that category. Easy and Fast to create setfilters for different subsets of armor would be great.
Other than that combuctor is working just fine, no errors, and no long fiddling with profiling options, something i find annoying with most bag addons.