Delay vs Attack SpeedFollow

Anyone? I don't get how you can have an attack speed AND a weapon delay....

Ok, if no one can answer my previous question let me ask this: How do you calculate when (the time) to stop using spells/combat arts, in order to let your auto-attack launch? The way I understand it, if you keep casting and casting you will never attack with your weapon. I am trying to maximize my DPS, and there has to be a smarter way than just watching your toon or the script.

Do you happen to know this....If you have a 5 sec weapon delay and you cast right before you were supposed to swing, do you have to wait another 5 sec to auto-attack, or will it auto-attack as soon as you are done casting?

I think the auto-attack time is pretty short, so will fire between your spells. Certainly if my zerker is using his long bow while I am completely spamming the spell buttons, the bow still fires every 7 seconds. I can only presume that melee is the same.