Healing with mouseover macros?

[OcieKo]

As for skill queueing vs. this, that's an interesting point but I think the time loss from switching to a target is often going to be a LOT greater than the time loss of not having skill queueing.
I know that in MMOs with heavy demand on the healers the difference in throughput from a healer using mouseovers to one targeting their heals is almost double. Skill queueing means it won't be as great here, but it's likely to be notable.

And here i just practiced using F1-8 while healing and switching targets once the cast begins rather than between casts. Mouseover always feels unreliable to me. Was nicer in my WoW days when raid frames weren't garbage.

Mouseover was big when needing to reliably heal targets that weren't assigned to F# keys. This game doesn't even try to make you want to heal the other 16 in a 24m raid.