One minor note here, it might not be worth it to wait until shallow insight to KS. Unless you suffer horrible RNG, both your trinkets should proc on the pull. If you wait until shallow insight, your 10 sec trinket proc may be close to running out. Assuming you are Eastrod from Mal'Ganis, I see you have a HWF TED trinket. I've only ever used Haromms as my 2nd trinket this tier so I'm not too familiar with TED and how it behaves, but based on the tooltip it looks like it would be even more important to hit KS immediately (after SnD is up, of course) as that's when you're getting the most agility (plus, depending on raid comp, skull banner+stormlash too). With this strategy I can usually have AR up for the full duration of the 20 sec AoC proc + pre-pot and I can pull off another KS within deep insight.
I've seen this debated quite a bit on the forums, so I'm not sure if there is some definitive math out there, I've yet to see it.
As for KS during AR/SB, the general rule used to be use KS outside of AR. However, there was some discussion a little while back as to whether it might be worth it to KS during AR/SB.
Feel free to read through these
http://www.mmo-champion.com/threads/...en-if-AR-is-up
http://forums.elitistjerks.com/topic...ead-yet/page-7 Starting at post #134