Dual Blade Builds

My idea of what tornado spin is once you have flying assaulter is just as an extra rush if flying assaulter isn't fast enough, so I don't find it useful in early 3rd+ since the best places to train on during those levels are mobby places with high hp monsters, relative to the damage you do at that level. And if you're not completely overpowering them, there isn't really much point to pushing them around more. Level 1 tornado spin does a decent job as a simple rush in 3rd job. Mysterious path 3 and C-2 are both maps for below 70, lower ascent has scattered platforms, stormbreakers have slopes and gaps, and galloperas/himes have a lot of hp, so I don't feel the need for that extra rush that early when flying assaulter is fast enough for your killing speed, at least until you're 100+.