I'm new to paladin tanking. Should flash of light be a standard part of my "rotation"? Assuming I'm keeping crusader strike and judgement on cool down and always using shield of righteousness when I can, why wouldn't I use flash of light as a filler? Mana and threat seem to be non issues and anything else I'd use would be just for damage which isn't really my primary purpose as a tank. I figure it would alleviate at least a portion of the work form the healer to keep me up.
Also I almost never use word of glory (the self heal) I just don't feel like it heals enough even at 5 stacks of bastion to be worth three holy power compared to shield of righteousness. Is this an issue of lack of mastery or is it really just sub par?