last night I set up Vuhdo + repeater regions for 5 man healing. Then jumped straight into h-VH. h-VH is a TERRIBLE instance to test setup changes. But I finished it without any wipes, a few close calls since I have to get used to clicking for heals instead of using keybinds. My overheal % dropped nearly 25% though. Much less mindless LHW / CH spamming. Not that I'm going oom on heroics or anything, but it's nice to see progress just by changing your healing method.
Anyone using ISBoxer should definitely check out repeater regions to manage your healing. Vuhdo eliminates the need for the clique addon as well.