Love my sled run it stock except for can looking to upgrade to a 09 M1000 or 10 M8. Have not seen a M8 all winter and have not read how they are doing. Any problems like clutching etc. Also I got that upgrade on my M1000 and I like everthing but the sputtering around 4500-5500. Are the 09 M1000 like that also? Thanks for any info.