Hey man. I don't mind helping, I just need a bit more information.
Whats the following stats for you please:
Attacks per second:
attack speed increase:
attack speed roll on weapon:
crit hit chance:
crit hit damage:
on your cooldown question. Yea, it really does make it easier to manage your CoE cycles to have 64%. Otherwise one little mistake can really screw you. Gotta watch the stacks like a hawk.