Speaking only for the ones I've seen work , a decent bull cross, will work through the inconvenience of a bit of pain and still try it's hardest. ,although it can be to a fault at times, it's a fault I'd put up with over one that over thinks the job and picks it's hold.
Not saying a Saluki,bull ,grey can't throw the same ,as I'm sure there must be lines that have ,And as a lurcher I'm sure they will suit more people.