The whole context of this thread is that in order for range expansion to occur price moves in such a way as to indicate what its doing. In terms of EMAs and in conjunction to price being below the OR_opening range. A break in tick trendline of significant length, and taking a trade irrespective of one's beliefs of what the market should be doing minimizes most of the risk, increases probability of success. Look for yourself in todays charts. And apply the rules. One could argue why not just randomly initiate entries whenever price is above or below the OR. But you need the retrace to minimize risk of entry and for the stop loss from being hit. As far as why 180/200 240 tick, its just something I'm use to.
If you followed the EMA's only, with one contract and initiated after 10:30am EST, you would be up over 6K.
This another system designed after the OR trade but uses 2:00-2:30 to recalculate OR. It incrementally adds one lot with each cross. These types of systems can only be turned on when vol is above criteria.
Identifying increased volatility event timeframes is one of the most crucial things to trading. Volatility moves price away from your stop loss, that's why its so crucial.