Quote from MrFuture:
Safe to say most people using ACD stay away from using the sytem for daytrading. I went back and looked and several charts to see if it could be used successfully for daytrading, and I noticed that while in theory the system makes a lot of sense, in practice you get whipsawed a lot if used for daytrading.
There are some periods during which it seems that it works great, but then you soon realize that a brutal period follows during which as soon as you open a position, you get kicked out and the stock/currency/commodity goes in the opposite direction all day long.
It seems that it is more promising when used for swing trades. Which brings us to a common theme: daytrading is extremely difficult and it seems that those who make a living with it rely on scanners/filters that tell them where the action is. Still, they are now facing the big enemy, HFT, which is blamed for creating false "action".