Blimey, you've been digging deep 🙂
I find, currently, RSI divergences still work as well as they did 2 years ago. I don't find them in CCI very much... They also worked on longer term ( days on a 10 min chart) but the turning point was very unpredictable.
As far as the 1 min DOW is concerned, they work pretty much all of the time. Pattern recognition plays a big part and whilst I can call them 99% of the time, others still struggle. It is the small nuances that I have learnt to recognise in the DOW that allows me to call them with precision. It doesn't end there.... recently they have changed their form and recognising those that will be a pre-cursor to a reversal and those that have an underlying support and continuation element is no easy task....
In my opinion, as far as divergences goes, there is little to chose between RSI and MACD.
They tend not to work at the open , especially when the dow gaps down, ie positive divergence.