I'm pretty sure I understand it but I just want to make sure before I commit to it on my warden build.

Hypothetical scenario: if I shock an enemy for 20% for 3 seconds, nothing happens to that shock for those 3 seconds from other attacks unless I get a shock bigger than 20% right? Like it doesn't reset the duration or anything?

And secondly: how does the shock ascendancy of Warden work exactly on stacking the shocks? Do I need like a ludicrous attack speed to keep applying the shocks up to 50? Or do those reset when a new one is applied?

Trying to figure out if it would better be to actually take that node on my warden or skip and grab a tincture but instead so I can use tinctures with the bow