Re: Fiberskyn on 18" BD
I've got an Emad and an Aquarian Superkick on my Yamaha Bop kits. For lack of a better description, I'd say the Emad is thicker and thumpier, and the Superkick is cleaner and more focused. I like both sounds equally, and either would work for your louder music, I think.
For softer stuff, you might have to try some type of muffling, as well as feathering the bass pedal lighter.
Last week I saw a guy using something kind of unique. You know the internal mufflers on some snare drums that you adjust by turning a knob? He had something sort of like it, but a lot larger on the outside batter head of his bass drum, and was playing quiet as a mouse.