Is that quicker and more effective than subconscious channeling?

That would definitely be the case, especially because it is somewhat more physical than karmic. Everything has a karmic element, including those things done by outside forces impinging energetically without any awareness of the victim, but there will be a clear path to a resolution in going to the source of the injury being that external manipulation and setting it right, rather than deal with all the fires it starts and working one's way back to a starting point that is literally beyond awareness on any level of the individual themselves.