As of tonight i've tested, and Party1 does work in raid (As I thought it would) and so, there is no need to physically use your characters name. In fact I have found that assist macro's, and even /target party1target tends to lead to occasional bad targets, or no targets, where as spells with [target=party1target] always go through.

Anyhow, I'd like to say i'm almost a PvPer. And your welcome Desolate