To be frank, the Dead Rabbit is not very good. The Drop is better within that price range. Those coils also look pretty hefty for a single battery mod. It seems like it would not produce that much vapor. In part, I think the lack of flavor might partially be do to the large coils. I found "fancy coils" pointless. Some disagree, but I really have not noticed any major difference in between simple coils and fancy coils.
To maximize surface area, minimize ramp up time, and maximize efficiency, I recommend flat ribbon wire. It's a bit of a pain to work with because it's springy, but it's doable.
If I get lazy, I do install performance coils. which are claptons. They contain 2-4 cores of 28g or above. Wrapped in 40 gauge. Anything above a 38g for a clapton wrap is counter productive.
Notice the flat ribbon wire covers more surface area but is a lot thinner(less mass). Thus, it has much better performance.