Haha, yeah thats been pretty consistent throughout all of WOTLK. We really only have a rotation on our openers or if Shadow weaving isnt at 5. Once its at 5 theres only a few times I'd even consider manual refreshing. Haste (for vt & dp) and spellpower (all dots) get updated automatically for us, but crit does not (at least for sw:p, not sure about the others, but theyre recasted enough that its a non issue).

I refreshed SW:P manually on BQ, but wasn't sure if that was actually proven to be an increase, but looks like I was right. Same with Val'kyr essences.

Really the only time I refreshed SW:P was on Loatheb and if I had an on use +crit trinket, but those are pretty shit regardless for us. When it comes to potting, I used to start with a wild magic potion to give the extra crit at the beginning so I wouldnt have to refresh later in the fight.

lol, now on a side note, heres a theorycrafting rant! (nothing to do with the question or anyone in the thread)

The problem with Theorycrafting and some of the sites is the fact that they're almost all based on perfect world/player scenarios. The one thread tells you to refresh sw:p after swapping out weapons that may have higher crit on them, making some people to believe thats a great idea to do... but to me thats absolutely retarded. The gains on DPS, if played perfectly with no lag/mistakes the gain would be so minimal (less than 20dps).

While shadowpriest.com/EJ/otherclasswebsites provide a lot of great info in regards to gear selection and rotations, they also put out a lot of useless shit that just makes an easy game complicated.