Good guide but I would like to point out a few things I (constructively) disagree with. You mention that during super charged gas to never use rapid scan, but with talents (forget the name) using healing scan lowers the heat cost of your next rapid scan. With this talent the total cost of healing scan + rapid scan is the same as a single rapid scan. Rapid scan also heals for more so its a efficient idea to follow healing with rapid.
As for the only healing never damaging i again have to disagree and say its more situational. As a lvl 31 ive found my self in many flash points and heroic quests where the tank just isnt taking much damage. While you can sit there and spam rapid shots on your tank you could just as easily hit the mob with those rapids too (and still stack csc). I feel an empty heat bar is wasted potential. Tabing over and hitting an unload is fine when everyone is topped off and you heat is empty. Obviously dont do so much as to impede your ability to heal if a burst of damage come in, but no reason to heal someone who doesnt need it just cus you like green . Again its situational.