Looking at getting a MKIV mill for small milling projects using mostly green white spruce under 30" in diameter and maybe some green paper birch under 24" diameter. Biggest saw I own is a Stihl 271 which is only 50cc and probably not cut out for the job. Looking for some advice on what Stihls people have had luck with when it comes to milling with a chainsaw mill? Is 60cc big enough or do I need to go for 70cc? I've only owned Stihls so I would like to stick with those but if there is a Husky that would do the job better I am open to suggestions. The saw would be dual purpose for use mainly in the mill but also for firewood cutting. Thanks!