It might taste a little funky initially, but it'll certainly end up being a very sweet mead. That fleichman's will likely die off with more sugar left than the sweet mead yeast would have left you. But it'll probably make for a decent dessert wine.
Hmm.. maybe give it a bit more honey. or some other more easily fermented sugar and see if it kicks off again?
Easiest would probably be to make a cup or so of simple syrup (water & white table sugar).
I've had sweet mead yeasts take 3 or 4 days to finally kick off. They're probably somewhat overwhelmed by sugar since that juice likely has a load of fermentable sugar in it, and you're using 12lbs of honey already.
On the other hand, the smack pack never expanding is highly suspect. I'd...
Drachebrauen (Dragon Brewing)
The first thing I ever made was a spicy habanero capsicumel which I named "Dragon Slayer" since I'd already set myself on a theme, figured I would stick with it. Plus being a Renaissance Festival worker, the whole dragon thing just kind of works. :)
I know this is an older thread, but I just picked one of these up last night. Put a small PC fan in there and it's currently holding steady at just over 36*F (temp probe submerged in a glass of water), with the temp knob sitting about halfway between 4 and 5.
EDIT: I had actually turned the...
This was a huge hit at a 4th of July party last night.
I used 3# of Basswood honey, 2 habaneros sliced in half, sweet mead yeast and water to fill to 1 gallon. Sat in primary from when I started it (sometime mid-May I think..) until yesterday morning.