Chartists, have you ever wondered if the bollinger band may be used as a guide for buying the retracement during a trend? How about using them to decide if a trend is even there? I've wondered this since my first month trading, when I watched my positions get checked by the bands on many occasions, yet other times they would rip thru and bend the bands as if not even there. Someone a while back posted that if you put may bands with different parameters over the chart, "magic" would happen. Being eternally curious, I did just this: Here's an idea that I haven't tested, but it may be worth looking into: 1. BB in 10, 20, 30 & 40 lengths all with the 2 std dev setting. 2. When upper and lower band bundles are compressed, do nothing. 3. When upper is compressed but lower is open, buy retracements at the band levels 4. If price breaks thru upper compressed bundle and bends it, long with full size 5. Take profits when upper and lower bundles are both compressed 6. Risk stop below furthest band (typically the 40 sma band) Your thoughts?