^^^ There is one exception to this. If you already have a proc sitting for Slug Shot and one sitting for Clean Shot AND you have an Ammo sitting, it's precisely the same thing to press Clean Shot as it is to press Hot Shot or Lead Shot (unless it's your Reassemble shot). Literally zero loss. A proc lasts for 10s, too, so if you just got them both, you can hit>

1 Ammo
Hot Shot [0 Ammo]
Lead Shot
Clean Shot
Slug Shot

And not lose either proc until it activates. This assumes I'm not an idiot, of course! I'm still just 54, so still learning. Just picked this up a few days ago when playing around in Trials.


So like tl;dr:
If you just did a Reload rotation and have Quick Reload ready BEFORE Clean Shot, you can roll:
Split Shot (slug shot proc)
Slug Shot (clean shot proc)
Split Shot (slug shot proc)
Quick Reload
[above rotation]

... IF you need the re-casts.