any comments/observations about stack trade http://stacktrade.com/index.html ?

no better than jeffs CCI setup here.

If you follow their system in a demo they will count every touch of price as a fill. Since they use limit order to get in and out of trades the real results will be very different than their count. I wrote a strategy in TradeStation a while back which worked very similar to theirs, and when testing it as though every touch was a fill it achieved very impressive results. I went live with it and on the first day had 7 out of 7 theoretical "wins" (if every touch was a fill) but in real trading it was a slightly negative day. Thus if my theoretical results yielded a slightly losing day I would have likely been killed in real life. It was a result of the fact that Ninja back testing does not treat every touch as a fill that I switched to Ninja since I realized that scalping strategies couldn't be tested on TS. (I didn't realize at that time the other disadvantages of Ninja back testing). Anyway, I don't think it's a winning system based on my experience. But I didn't use it for long.