Quick quickness question!

[TrajanX]

Sorry if this is has already been answered, I did do a search but I might have missed it.

I understand that quickness (the spell) and quickness (the bless) and quickness (the ability) are different. My question is about all of these, but mostly about quickness the bless and the spell.

When people talk about how the spell is a 100% speed increase and the bless is 50%.. what exactly does that mean? I know that action points are increased by that amount, so movement should therefore be directly increased by 50 or 100%.

What about attacks though? If I have a unit that has 2 attacks, e.g. a spear and a bite, and its affected by the quickness spell, does it go up to 4 attacks a round, or just get 1 extra attack? Would a unit with 3 natural attacks go up to 6, or 4.5? What about a unit with only one attack, but the water trident (triple strike). Does he go from 3 attacks to 4, or 3 attacks to 6?

Seems like if your sacred units or power units have multiple attacks to being with, the answer to this dramatically affects how well quickness will boost them, so I'm really curious to get this settled. Thanks (from a noob!) for any help!