Yes, thanks! Wasn't aware about the sec rounding thing at least.

When I think about it, mashing > 1 press and hope both/all skills activate.
The problem is to adjust the mashing with weaponskill rotation etc. I usually don't mash buttons, unless I'm bursting in hectic pvp situations.

Hitting 1 macro with "wait" commands between actions are too unreliable in mid-combat. In my experience that is. You have to pay extra attention to see if the abilities activates or not too. And if only the 1st ability activates you just waste time.