Dunno if makes a difference in your corner of cycling, but my bit, which is tandems, I've found that those single butted Sapims are the best spokes available. Everything else breaks.
In normal use I've never seen a decent 2.0/1.8mm spoke break in the middle, it's always at the nipple or elbow, even on tandems. Obviously polo is different because of impacts, so plain guage is best.
I think if a dt/sapim spoke breaks at the elbow it's because of a poor build: low tension means play between the spoke head and hub flange hole. Millions of revolutions wears them away and they eventually break. A good wheel shouldn't have any movement there. If a spoke breaks at the nipple it's usually a poor spoke (never seen a dt/sapim spoke break at the nipple), probably caused by cut rather than rolled threads.
In normal use I've never seen a decent 2.0/1.8mm spoke break in the middle, it's always at the nipple or elbow, even on tandems. Obviously polo is different because of impacts, so plain guage is best.
I think if a dt/sapim spoke breaks at the elbow it's because of a poor build: low tension means play between the spoke head and hub flange hole. Millions of revolutions wears them away and they eventually break. A good wheel shouldn't have any movement there. If a spoke breaks at the nipple it's usually a poor spoke (never seen a dt/sapim spoke break at the nipple), probably caused by cut rather than rolled threads.