Good evening folks! I currently own a 064 that I have been using with a small log Mill. A nice 056 magnum has come up for sale locally with a 50 inch bar for $650. I will be Milling mostly Hardwoods in the 20 to 36 inch range. I am wondering what people's thoughts are in regards to any advantage or disadvantage the 056 would have compared to the 064. I'm not sure which ignition the older saw has and any advice on how to identify that short of tearing the saw down would be appreciated. Thank you for any and all help!