No, al-motor - entering on the neckline break is just too late for an entry. Any entry needs the minimum amount of risk, and if you enter at the break of the neckline your stop is way back up above the right shoulder. Big risk.
The example above is a somewhat messy right shoulder, so it's not easy to see. You need to go short on the first lower low and lower high bar of the right shoulder. In an ideal world this would be around 10355, and that means that your stop is just above 10360. Tiny risk.
There is a small double top at 10360, so there is strong resistance at that point.
And then just move your stop down, remembering that sometimes there is a bounce on the neckline to spook out all the little retail boys.
Do remember that I don't trade the Dow or YM, so I really don't know what would be a feasible entry trading wise.