Elinchrom Quadra review and comparison to Ranger RX

For the last three years I have been using the Elinchrom Ranger RX for the majority of my strobed work.  Sometimes I use some Nikon speedlights for fill, but the Ranger is my key light.  I have used it in the rain, in blizzards, in -32 degrees Celsius and it has traveled around the world to Alaska, Japan, New Zealand twice and everywhere in between.  I can depend on this strobe, and it has never let me down.  I have the RX version which is slightly lighter weight than the RX Speed.  For me, recycling time is not such a