Does anyone have stick time on both of these bikes? I have a 2009 Evolve which is a 4" travel bike set up for XC. I'm looking at the 2013 Scott Spark 910 and am very intrigued by the travel options and the lighter weight. I don't need anymore than 4" travel based on my normal riding conditions so would the Scott be a upgrade from the Ellsworth? Or do I just have new bike lust? I was seriously considering buying a hardtail and keeping the Evolve until I came upon the Spark.