That was pre-Cata though (and even so just a hack to Lightshadow's sheet), so that may have changed since then.

Using RvS at any point other than exactly 4 CP's runs an identical risk of wasting a Combo Point from a GoSS proc. The only difference between using RvS at 2, followed by two Sinister Strikes, the latter of which is a proc, and using it at 5 CP's is that when the former happens, you don't realize you wasted a CP.

The reason you only use RvS at 4, is because it's the only time you can use RvS during which you can be certain that you won't end up having to Sinister Strike at 4 CP's. Because every time you have to do that, there is a 20% chance of wasting a Combo Point.

My fault Spoon. I was confusing your Spreadsheet with the FAQ made by Aldriana: "For a third glyph, Slice and Dice is the current leader, but both Rupture and Revealing Strike seem reasonably competitive."

While the glyph will provide the same increase in finisher damage as it does currently, the buff to RvS makes the RvS glyph even less attractive when compared to other glyphs (primarily rupture glyph).

It'll only be worthwhile to do so if the value of relentless strikes minus the value of the energy lost to capping is less than the value of the next best alternative for those 3 talent points. In the past relentless strikes has been very far ahead of any other low-tier ability in dps value so it's unlikely. That said I imagine figuring out the dps value of energy lost to capping (only in the few seconds after a RS proc) is somewhat tricky (it's certainly beyond my mathematical skills).

During Deep Insight, is it still better to put up SnD if it falls off or should I keep pumping out the other finishers?

I'm guessing a 1CP SnD would be optimal to keep it going without wasting too much potential damage.

SnD is the bread and butter of combat's damage. It increases every aspect of your damage spread because it affects white attacks, poisons, and specials through combat potency. It should never ever be voluntarily left down. Maybe loatheb, but probably not even then.

Even with deep insight you should be maintaining roughly the standard rotation; anticipate that snd is about to fall off and get as many cps as possible to refresh it with. 1 cp will mean you need to refresh it again during deep insight and is far from ideal. It's better than not refreshing it, but usually a 1 cp snd is not efficient enough to be worth it. The "it doesn't matter how many cps you refresh it with" isn't meant to convey that all cp levels are equally efficient for snd, it's meant to convey that you need to refresh it immediately regardless of how many cps you have. The only change is that you shouldn't be applying a rupture during deep insight.

From what I am understanding the new combat mastery is a Main-Hand attack for 100% damage that can proc its self and also can proc Combat Potency, and its self. It looks like rogues have the old windfury totem to them selves, and part of me thinks this may bring mastery up over haste for EP value, just needs more testing I believe.

From testing Ive been doing on the PTR its lost the Combat Potency ability (100 MG procs, 0 CP procs), I'm not sure if that is a drop in its EP or a gain with todays changes tho.

How did you test this by the way? Because if your auto attacking and getting no CP procs there could be just a bug.

I would think that the 5% increase in AP from vitality (not to mention energy regen) would also help the damage of an extra MH hit