Well, secondary WOULD do something about the green flavor, because its aging and dropping yeast out of suspension.
It also means less yeast going into the keg, so a cleaner pour initially and much less chance that any moving of the keg will cloud it up to all hell again.
Primary: English Mild
On tap: Pale Ale, Lancelot's Wheat, English Brown Ale, Steam Beer, HoovNuts IPA
Bottled: MOAM, Braggot, Raspberry Melomel, Merlot, Apfelwein, Pyment, Sweet mead, Cabernet
Gal in 2009: 27, Gal in 2010: 34, Gal in 2011: 13, Gal in 2012: 10