I started tanking at level 30 (currently level 55) and I have always used Seal of Light. Now I know a lot of people recommend Seal of Righteousness but I never once had any threat issues. In fact I never even had a single death in any of my pugs till ZF but that’s because I listened to a dps on a pull instead of trusting my own judgment. The only problem I had was that I healed myself for so much that my healers got bored and would start dpsing.

At level 50 I was really excited to finally get Avenger’s Shield but I had to stop using it. It burned through my mana more than Consecration. I went back to my old pulling style until I get Divine Plea.

Lastly I think you missed my point about the improved judgments spec, if you are using a 6/9 rotation (as you should) then having 2 points into the talent is the exact same as 1 point, you are going to get the same amount of judgments in any given encounter than someone with 1 point in it. With a 6/9 you are judging every 9 secs, with or without 2 points in the talent.

@Ryan: Imp Judgements is good for trash, and having an 8 second Judgement won’t throw off your 969 if you’re vigilant about keeping the rotation tight. It’s really not as bad as it used to be thought, I’d recommend trying it. And I tend to run with a lot of hit (not spell capped, but a healthy ~200) so I’m less concerned about missing taunts. I’ll take the added consistent threat of Judgements doing more damage over a JIC glyph.