This build seems quite wrong. The most important thing about LL, is that it can be refreshed using VB. To do that tho, you need 2 points in Lingering Pain, that you completly ignored. Plus, why ignore SLD? IMO, put 2 points in improved Void Bolt, 2 points in Lingering pain, and, if you want an easy life, make an A->B->A'->B' kind of rotation, once letting your charge run off, and the other using SLD.
What are your stat, and can you please post a parse of the rotation and build you suggested? It really seems subpar.
Regarding the "you may even go 38 28" : having defile on a heavy movement fight is a pain, because charge becomes a pain. 36 30 is supposed to be the easy build you can use blindfolded, that means, it can be used while learning a boss mechanics ( ideal with ID's opening).
@Calmenthar : LGW suggested to use that build with 1 point in defile, and the lock greater. otherwise, he admitted 36 30 would have been better.