Go slow with the honey! You can always add more, & can't undo it. I usually start with a cup, add 'till I like it. Then calculate that up to the full batch. When I measure it out. I'll add half of what I have measured, taste, if it needs more I'll add half of what's left, if it needs more, half of what's left... Until I'm happy with the result. (I have gotten to the point of no change & had to reach back into the honey pot, but you'll get a feel for it by that point)
I do use Campden and Sorbate as directed.