For a float rod I would go with the Rainshadow. You do not need the sensitivity of the IMX and the fragileness of graphite use in the construction of the IMX is very unforgiving. The RX-7 has plenty of feel and is a very high quality blank, I don’t think you would be wrong with either one but for the money and this particular use, I would choose the RX-7.
_________________________
PSASnoKing.com