is the potassium sorbate really all that necessary? I was thinking about throwing in some extra honey around the time the mead starts to majorly slow down, and let the yeast go at it for a bit longer, unless this is foolish? On another note if you guys wouldn't mind offering some input, I plan to shoot for aging my mead in secondary for around six months or so.. D you think degassing will be necessary? Thanks much!
The sorbate just stops the yeasties, foreign or domestic, from reproducing and they will die of old age, the main reason is to prevent fermentation from starting back up in the bottles thus turning into bottle bombs, especially if you back-sweeten before bottling.
If you had a foreign substance in there, K-meta/campden is necessary to kill off any bacterial contamination, especially the dreaded acetobacters.
There is really no reason you can't let your Mead degas naturally, most of us degas manually so we can bottle sooner and use our carboys for the next batch.