Hi all. got a question for you lumberjacks. I have a MS310 with the recommended 20" bar. I very occasionally need to down some pretty big trees. Currently I have a big black locust next to our cabin and I need it down. It's leaning in a good direction away from the building but it will take some doing with the 20" bar. A 24" bar is listed as the max for this saw. Wondering if anyone has used the bigger bar with this chainsaw and whether this saw would be up to the occasional felling job for a big tree. A bigger ~ 90 cc saw cost is prohibitive for the occasional use I would get for it. The locust is about 40" diameter. Looking for your comments. Thanks.