"Using Ichi what is the best way of marking past resistances and support. I have been doing it using the past CS. is that correct. And how good are the projected Span A and Span B resistances and Supports."
I get some excellent questions behind the scenes, and this is certainly one of them.
The thing I like about this question is that it points out 2 things about the ichimoku?: 1.The versatility of the ichimoku; 2. My personal most over-looked part of the ichimoku (Just pointing out one of my shortcomings.).
There is no "best way" of pointing our supports and resistances using ichi. My personal trading style has always been to seek out a most dominant S or R on that chart, as well as seek out the most dominant TF.
I often overlook (to my fault) the chinkou, but when it crosses over the candle, that becomes a very strong momentum and trend indicator. Linkon has an excellent thread on the ichimoku, and he often alludes to the chinkou.
In theory, this is why it is such a powerful indicator. I read once the exact average of a cycle is 29.1 periods, which coincidentally is the median age of the world. When you subtract consolidative moves before reversals, decision points, etc, you could safely say the cycle would be closer to 26, and that is the default setting for how far back the chinkou is plotted. In other words, chinkou crosses the candle, then ride out the trend the rest of the way for a low risk position.
I did go off on a tangent with some of my theorization, but having said that, I still think it is relevant to the particular usage of the chinkou. This additional aspect is also showing why the ichimoku perfectionists use the one-look (English for ichimoku) as a standalone, such as my mentor on the ichimoku.