I don't think anything is "untradeable", but I do think you have to listen to what the chart is telling you, rather than try to find what you are looking for. This is probably the hardest part of trading for me - waiting for trades to come to you rather trying to find them in everything you look at.
I think in some of the stocks you have on your shortlist, the charts are telling you different things than your indicators are, and you need to look more carefully at the longer-term picture before you look at your short-term indicators.
For example, DRX has bounced off 500 three times recently, so it has good support here. Moreover, the 500 level has historic support from back in Jan 08 and Jan 06. So it is going to take a lot to get the price down below this level. So given that, shorting this stock at 575 is high risk/low reward. Not the kind of trade I like.
Furthermore, each time DRX has bounced from 500 it has made a lower high. So this is now showing a descending triangle pattern, which means that there is very little room for the price to move before it hits support or resistance. When a share price gets pinched like this, it usually whipsaws inside the triangle until it breaks out violently in one direction or another. So taking a position inside this triangle is again high risk/low reward.
For me, DRX is no longer trending and I would not be looking to go short on the latest bounce just above strong support and inside the triangle. Instead, I would be looking to trade the breakout by waiting to see which direction it takes and then going long/short.
So this is now on my watchlist. Thanks for the tip!