Machinist extinction in 4.0?

[EdwinLi]

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RNG does effect the MCH DPS during the Reload and Quick Reload Cooldown period. When you're stuck only spamming Split Shot between weaving Gauss Round and Ricochet it is a decent amount of DPS lost due to not getting that 50% chance at Slug and Clean Shot.

[CosmicKirby]

RNG does effect the MCH DPS during the Reload and Quick Reload Cooldown period. When you're stuck only spamming Split Shot between weaving Gauss Round and Ricochet it is a decent amount of DPS lost due to not getting that 50% chance at Slug and Clean Shot.

Just did a 2 minute rotation on a dumby, even as rusty as I was on MCH.
In a full rotation between wildfires, popping Quick and normal Reload, HotShot/LeadShot as appropriate, there were about 10 cases where I fired Split/Slug without ammo, ergo a potentiality for getting a proc.
You lose 40 potency if you don't proc a Slug from a split.
You lose 20 potency if you don't proc a Clean from a Slug.

If one's rotation of those 10 procs is as follows:
1 2 3
4 5 6
7 8 9
10

Split Slug Clean
Split Slug Clean
Split Slug Clean
Split

140 180 200
140 180 200
140 180 200
140

(The differences from Split's 140 base being)
Base 40 60
Base 40 60
Base 40 60
Base

40+60=100
100x3=300

The odds of not proccing ANY Slugs from split is about 1/1024. (Flip a coin 10 times get all tails) a potentiality of losing (in this worst case scenario) 300 potency.

If a WAR's Fell Cleave doesn't crit they lose 500.
It's not that much of a loss.

(Though upon reflection, one's subsequent Wildfires will usually not have full ammo stacks + Reload off cooldown, thus one would have a worse wildfire by having to fish once or twice, the variance for each hit would then increase because of buffs such as Blood for Blood, Hawk's Eye, and Raging strikes being up + Wildfire's 25% damage buff. The difference would be more significant there.)