SonomaComa
ArboristSite Lurker
I just purchased a 450 from the dealer. They had the saw assembled gassed up and ready to go. They even started it 3 times for me to prove its ready to go. I got home 90 minutes later to use it and it would not start. Wouldn't even sputter. It acted like it wasn't getting any spark. I tried for 20 minutes. Tried again after waiting a half an hour and I figured I got a lemon. Went back the next day and it fired right up. I have since read some reviews saying that's been a problem. I asked about the 550 XP with the Auto Tune and they told me it's for professionals, and they cut differently than non professionals. I have now read and seen that the 450 only has one nut holding the bar on and its hard too keep the chain tight, in some instances the chain even came off! That sounds like a HUGE safety issue. The 550 XP does have two nuts attaching the bar which seems way safer. I have not cut anything with that 450 yet wondering if I should exchange it for the 550 XP while I still have a chance. But would that 550 XP be problematic for a casual user?