As far as the honey, I like to add mine during fermentation. I have found that boiling honey will take out almost all of the flavor. I add mine toward the end of fermentation and the airlock activity will go crazy for a few more days and will thin out the beer a little. I could be wrong but I...
Floating hops is going to work just fine, its like a floating lime in your corona. You get plenty of lime flavor. Maybe next time I go eat Mexican food I will bring a hop bag and some marbles so my lime will sink and see if I get more flavor