I don't currently use them but I do have several in my "odds and ends" arrows box. Cabelas still offers their SSTs and Mavericks. Both are of the "skinny" carbon variety with the outsert.

The new Easton Axis shafts may be worth considering as well. Though not as skinny as the outsert carbons they are thinner than typical ICS carbons and could potentially provide many of the benefits of the skinny carbons of yesteryear without many of the disadvantages.