There's still plenty of yeast in suspension even after months of secondary. I've just primed and bottled with a three month secondary and had no issue with carbing. Especially since I planned to wait a few months to drink it. Like on my Belgian Dark Strong.
On Tap: 1. Kelly R. IPA, 2. Roter Hund Hefeweizen, 3. Bud Killer Blonde, 4. Red Dog Pale, 5. Roter Hund Oktoberfest, 6. Pumpkin Ale, 7. McRed's Stout (with new nitro system and stout tap,) Cream Soda, 8. ESB # 3, & 9. Ordinary Bitter.