crobb305 - 2:33 am on Mar 7, 2011 (gmt 0)

The lost traffic was coming in on an assortment of twenty 1-word search terms and then bouncing at over a 90% rate

I have always observed the same thing. The one-word terms have always had a high bounce rate for me. I just view those rankings as trophy rankings, and never fret if I drop. The longtail always converts best for me.