bread yeast will not ferment 3.8lbs of honey in 1 gallon batch. You'll have a mead that's WAY too sweet to drink and like.
I'd go with no more than 3lbs in a gallon, and use a brewing yeast, not bread yeast.
yeah, 'yeast is yeast'...but its not. brewing yeast is made for fermenting, not baking.
I'd go with narbonne 71-B or EC-1118, staggered nutrient additions...etc.
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