I tired both of my purchases today. The Tornado is fantastic, the jetstream, ehhh, maybe I got a bad batch but it doesn't write nearly as well as expected even coupled with the expectation that it's a cheap pen ($3/ea). It's also crazy to see the variance in line width between two .7mm pens. The Tornado is pretty much as expected, the jetstream is much, much thinner, doesn't float and feels scratchy. Some of that is down to the crap paper that I'm writing on but that's not going to change any time soon.