Originally Posted by sonvolt
yep - a corny is just one huge bottle, if you treat it as such.
With one BBIIGG difference - you still need a CO2 source. Why?
Cornies are notorious for their lids not sealing unless you pressurize the keg. If you just prime, rack to the keg and place the lid, in a few weeks you'll have a keg with lots of sediment in the bottom and no carbonation, as it will all leak out of the lid.
To seal the keg after racking, you really should hook up a CO2 source and pressurize it. That way the lid will seal. At that point you can let the beer condition naturally it that's what you desire. I've experimented with a big batch, cask conditioning half and force carbonating the other half. I couldn't tell the difference, nor could any of my friends. The difference I COULD tell was that it was more work priming, just to get those first few draws of nasty sediment filled beer. Hardly scientific, I know, but there you go.