Hey - wondering about implants and Redox...

I have the following:

Redox Blast Radius: +32% (DOT/Debuff for 40m)

Ability Damage: +23% (27k Damage)

https://omegle.onl/

Ability Cooldown: -23% (Can reapply after 6 secs)

https://vshare.onl/

Redox Blast Duration: +40% (Debuff lasts 8.4 secs)

Is the last implant worth it? Without it, the DOT could be applied every 12 secs doing same damage vs 14.4 secs with 8.4 secs of Slow?

Would I be better off taking a weapon damage implant over the Blast duration?