Refer to my other post answer
here.
And, btw, Shm 1.5 clicky is not a haste, but a Dmg Mod and Regen effect.
**** EDIT ****
Just in case, my explanation wasn't clear enough, you might want to look at
Samanna Combat Effects page which covers Haste, Foci, and Secondary Mods, as well as some others.
Also to reach the 100% cap with 39% haste, you'll need an Enc haste over 60%, which all above level 60 are, if I recall correctly. But even with the Shm 60% + 39% worn, you'll be at 99% haste, plus any overhaste you can get.
**************
Yther Ore.
Edited, May 15th 2009 9:42pm by Yther