Many thanks to Sacharja & johNNy blaZe a.k.a. hotnikkelz for all their work!
http://www.caliburforum.com/forums/showthread.php?t=35046
ATTACK SPEED
i13: 2G+A_B+G
i14: 4B
i15: K/2K/6A/FC 2K
i17: 6K/4K/WS K/A+G_B+G
i18: 3K/FC 3K
i19: 1B/6A+B
i20: 3A/3B/22A
i21: A/2A/FC...