I have a question regarding the way EP values are calculated/given for assassination stats (especially expertise). I, like probably the majority of rogues, are using the BiS EP values calculated by ShadowCraft for current reforging/gemming. This is great, but like some people I worry about my own specific EP values, especially since my mastery is getting so much higher than my haste.
I've used both the ShadowCraft web frontend and the latest version of SimulationCraft and obtained the following EPs for myself (SimC is normalized to 1 AP):
| Stat | ShadowCraft | SimC |
|---|
| Agi | 2.57 | 2.52 |
| Spell Hit | 1.30 | 1.58 |
| Mastery | 1.16 | 1.17 |
| Haste | 1.10 | 1.12 |
| Exp | 0.97 | 1.12 |
| Crit | 0.83 | 0.87 |
It seems that there is pretty good agreement except for the stats that cause you to miss/hit. I'm just wondering if anyone knows why SimC would value expertise so much higher. I'm not reforging to haste right now anyways, but I might in the future. I also ran SimC for the BiS gear to see if the values were similar:
| Stat | ShadowCraft | SimC |
|---|
| Agi | 2.61 | 2.59 |
| Spell Hit | 1.42 | 1.64 |
| Mastery | 1.28 | 1.31 |
| Haste | 1.19 | 1.19 |
| Exp | 1.09 | 1.26 |
| Crit | 0.92 | 0.94 |
Again good agreement for everything except the capped hits. I'm aware that SimC calculates scaling factors by lowering expertise and hit instead of raising them, could that be the source of difference? Should I just disregard SimC's results?