1) Correct
2) Correct
3) Incorrect. You use starsurge to buff your casts on the way up to a peak. It buffs your next 2 Starfire, or 3 Wrath casts.
4) Peak only affects the
initial damage from your DoTs, nothing more, nothing less. For AoE, use appropriate spells as you see fit, when you see fit.
5) Incarnation
6) I wouldn't say it means NOTHING, but it's not a high priority. I have been gemming the following:
- Yellow = Fractured Sun's Radiance (+20 Mastery)
- Blue = Sensei's Wild Jade (+10 Crit +10 Mastery)
- Red = Artful Vermilion Onyx (+5 Int + 10 Mastery)
Hope this helps you somewhat.