Guild Wars 2

Dragon Tooth, Ice Spike, Lightning Surge, Eruption and some other skills all have a delay to when they actually hit.
Rather than increase dmg #s I propose a secondary function for them
When you activate the ability, you can press it a second time to have the skill activate at that exact moment.
The effect will always be stronger the longer you wait (Longer burning on dragon tooth, longer blind on lightning surge etc.)
On the other hand, the quicker you activate it, the weaker the effect and lower cool down.
This is so that you can get the effect (EX:blast finisher) exactly when you need it, somewhat counteracting the delay people deal with now.

What are your thoughts?

TLDR: Activate delayed skills like dragon tooth at the exact time you need it.
Longer wait, stronger effect, regular cooldown
Shorter wait, weaker effect, lower cooldown