While I love my pro 2/MVP setup, browsing the pic threads has made me want to get something with a little more pizzazz. So in the morning I'm going to the local vape shop. The two tanks I'm looking at are the Russian or the nautilus with hollowed sleeve. The store has both in stock so I'm trying to make up my mind which one to get. I know the Russian is more pricey but that doesn't really matter. So given the choice which would you choose? Also which mod would you put it on? Thanks!