This is some funny stuff you wrote right here, did you call someone stupid and then post your stupid rotation?
You notice that you said corrosive dart before grenade right? That's extremely improper. Also Cull Poisons hit for much higher than CD or CG poisons which is why you want to save ALL TEN STACKS of your WB for your 3 culls that you will do in a row during your opener. If you WB before your dots you will lose AT MINIMUM 2 STACKS and at max 3 stacks if your CD procs two ticks. (CG instantly does a tick and CD takes 1.5 seconds.)
The only time you EVER use Explosive Probe is when your energy is over 85 AND you have a free Cull proc.
The only time you will ever use a weakening blast before a shiv or your dots is if it's off cooldown and you are energy starved.
Using Hidden Strike>Shiv drains your energy so much that you wouldn't even be able to use both of your dots and a cull without being below 60. So don't do that. If you're PVPing and want a huge opener do Hidden Strike>Backstab>CD>Shiv>CG
Backstab only costs 10 energy so not only is it filler, but it also let's you get a (tiny) amount of energy back since ops regen 6.1-6.7 energy per second.
Source: Me(thebestlethalityoperativeinthegame)