IMO if you're trading EOD, then the NR7 or NR4 days are NOT the time to get IN to a trade, because these patterns are continuation patterns, not trend reversal patterns.
If you are already long, and are using the low of the previous day as a stop, then your stop will keep you in the trade regardless of which way it breaks out. The bars to watch out for are the key reversal ones, in which case your stop is likely to have been hit. Then you reverse to short, and put your stop at the top of that day's bar, and work your stop down the daily bars, like going down stairs.
As with so many things in trading, once the term NR7 is known, it will be faded by the clever ones, which is why they're not as good as they once were. And for anyone who doesn't know, NR7 means the Narrowest Range for the last 7 days.