@Loroese: So then why the big discrepancy with HolyForks numbers? His contribution is still nearly double your estimate and, thus, he's presumably then casting DS every second (6.86x multipler with SNS vs 6.18x multipler for SNS with Crystal Shell). The descrepancy seems to be not trivial, especially as the inter-trial variability of the trials HolyFork did repeat was between 1-3s.

EDIT: Thanks for the crit vs. proc info! :) I was thinking Hydra was more general, in that if it couldn't proc, it also wouldn't crit.

There's a bit of a difference between DS making up 5% of your dps and adding it to gain 10%. I was mostly looking at it from the first case. The second case is more accurate because it also accounts for loss of dps due to the extra CM procs from DS, so the first is an approximation and the second is closer to reality. Also, my 5% is from my stats, which are a little below what most people run (2.69 APS, 50%CC for most of my trial runs) so it's going to be a bit higher for most people.

For example, if I run 3.01 APS, 55% CC, 20 APoC in my simulator, I get 6.2x multiplier without DS, 6.7 with, and DS contributes 7.16% of the dps. The difference between the two is more like 8%, so there's 1% dps added from DS that's indirect.

8% is still different from the 10% in game results, but I think it's close enough. There's just too many factors to get the results to match completely all the time between latency, reaction time, and just plain RNG.

In short, 5-10% is a good range to say for single target DS DPS.

EDIT: Another aside, Hydra coefficient is also 0.