ok so i went out w/ my friend today and this is the first time ive seen him on his m1000 and he ripped it up i was breaking in a d8 for my uncle and the m10 eat me alive but his bro was on an m7 w/ a 153 and it was going better than me on the d8. i am upgrading from my old rmk 600 w/ a 136 this year and i need to konw what is best for boondocking side hilling and climbing. i was having a toughf time getting the d8 on its side but then m sleds seemed to lay right over so what is best