So now with some good arguments, why would i take smoke screen over vault? vault+caltreps is working fine?
Odd I was considering getting rid of caltrops.
The slow seems to do nothing, and the bind of torturous ground works ok on weak mobs, but barely seems to do anything at all to champions. And I mow down regular mobs like its nothing most of the time.
This a thousand times over. I got rid of Caltrops once I hit Hell, grabbed Smoke Screen (yes, I was an idiot who didn't realize the power of it), and will never look back. I simply got to the point where the packs that gave me trouble were slowed so little/for so little time by Caltrops that it became rather pointless.
I don't think the benefit is so much in the slow at higher levels, it's using the Jagged Spike rune and doing the area damage. This is particularly effective on enemies with melee abilities. Lure them over, stack a couple Caltrops, and then Smoke Screen. It clears out mobs, even champions, fairly quickly. Needless to say, there are potentially more useful skills that may suit your build better, but I think Jagged Spikes is hands down the best Caltrops rune for anything past normal, particularly with Cull the Weak as a passive.
I don't think the benefit is so much in the slow at higher levels, it's using the Jagged Spike rune and doing the area damage. This is particularly effective on enemies with melee abilities. Lure them over, stack a couple Caltrops, and then Smoke Screen. It clears out mobs, even champions, fairly quickly. Needless to say, there are potentially more useful skills that may suit your build better, but I think Jagged Spikes is hands down the best Caltrops rune for anything past normal, particularly with Cull the Weak as a passive.