See, it's non-traditional builds like this that give me hope for this game. Great guide.
I recently started using a very similar build for mp10 but I was using tinkerer and grenadier instead of cluster and cull the weak. I found that spamming spike trap is much faster at taking down the mobs than anything else. I was also switching custom engineering for archery at times giving me double the amount of spike traps, but I haven't tested this enough to conclude on anything.
Great video, I'm glad there are more people out there noticing the diversity of the DH. Though, I do believe we deserve some skill buffs :)