hi guys got a couple of ?'s for you all. I recently purchased a 98 Yamaha mountain max 700 with a whopping 120 miles for 3500 canadian. anyway i have been looking at upgrading the track length but unsure of how long to go. been thinking about the hartman 144 inch upgrade but then the ego kicks in and says to go with the 156. i will be doing mostly trail riding so im unsure of what my best approach would be. any thoughts and this or any ungrades would be nice.