Neutral jump is actually the best way to do air projectiles low, the only problem is you can't do an instant neutral jump unless you buffer up. It takes 3 frames otherwise. You can do instant diagonal jumps but the games will wait up to the same 3 frames for you to press a direction when pressing up. Here is a comparison of the height of the fan at frame 12 of a perfect air projectile.
Diagonal jump
http://i.imgur.com/G3aft.jpg
Neutral jump
http://i.imgur.com/jAim4.jpg
I actually have some numbers of a perfect projectile.
Kitana NJ
Duration - 47
DPS - 10.2%
Fireballs/s - 1.28
Startup - 5+12
Recovery - 30
Kitana FJ/BJ
Duration - 49
DPS - 9.8%
Fireballs/s - 1.22
Startup - 5+12
Recovery - 32
A slight difference but nothing major.
Hmm interesting. Honestly, against reptile or even kabal, i find the Np iafs work best.
Per say, how low it comes out doesnt matter, as long as it head level, but then again, the lower the fan, the faster it is due to her throwing the fan earlier rather than if she went higher.
Thanks for the reply, ill test both out to see which one suits me best.
At devastation, i stuck with BJ iafs, and they helped me wonderfully, i wonder if NJp would be the better option.
I know the differences are not major, but im gonna lean towards NJP iafs, like i said, against reptile and kabal, i feel i can trade with a chance.