If you saying that DH has DPS issues compares to other classes then yeah okay. And ur build isn't bad (personally would use caltrops -> tort ground to ensure that all 3 explosions hit ur target.)
The issue I see is a very similar issue with Suomi and that these buffs are being targetted for the way you play instead of the demon hunters in general. I can understand why you want a huge discipline buff to keep using prep -> punishment rune. Because your using prep way too often and using shadow power on top of that, you will run into discipline issues for ur build compared to rapid fire which only requires one shadow power usage, on top of being hated efficent.
As for spike traps vs rapid fire its preference as both shrine in the right situations. Since I discovered this 'advanced' snapshot mechanic, I would say rapid fire dominates (and can snapshot steady aim too) even tho your playstyle is much more interesting.
Sry if I didnt give other skills some light ^.^
can u play same dungeon in 10 minute without death??
other class can do it
I can tank on 3 arcane beams, molten, plague just fine thanksssssss