Steve....don't know what kind of Traeger you got...but mine gets up to 400. I cook all sorts of stuff on it....just don't want folks to think its just a smoker....far far from it. It IS a grill.
And with the indirect heat, you really don't need a sear on a steak....that process is used to seal one side of the steak to keep the juices in on direct heat cooking, and as you know, both the grills are radiant heat which greatly increased dry out of meats. Of couse, if you have other reasons for a sear...
BTW...just how do you sear a steak on a green egg?