This approach is good as it takes care of both short term and long term target. However, it require someone with deep pocket to carry because I feel it will require some reasonable funds to sustain. Don't get me wrong, I love the approach and I am happy it is working for you.
If that kind of approach can work for other people, then I think it can work for us too if we implement it well enough even though you say you still have to have sufficient funds to be able to survive in the long term to carry out that approach. And I think it won't be difficult enough for you to do because most people at this point can still survive when they see market conditions start to differ from what they predicted.
What I don't understand is what you mean by DCA sentimental market approach and how you apply that. Is that not the same thing as being speculative if you have to gauge market sentiment? I thought DCA does not factor in market sentiment?
As for DCA, you can actually do it without calculating market sentiment, because so far DCA is still good enough to be done by anyone with the ability and courage. Because current market sentiment also changes frequently, you only need to apply the DCA if it's still difficult to measure market sentiment simultaneously with DCA.