Yes, I bought into the ones that are adjusting big. Honestly, I don't have the time to play every bond adjust that comes along, but when i see a bond that may be adjusting 10+ up or down within a month, then I'll buy it and do a limit order to sell or cover it when it adjusts.
I know that MY buying / shorting a starbond won't make much of a difference in price, but it gives you one perspective as to why the prices on them may be moving... there may be others that don't play bonds as much but buy them when there is a large swing in price?? Just a thought.