With the BBK on board, the only saw I have (other than my Stihl MS 660) that will run with the Makita is my Stihl 046. Both weigh about the same. I doubt I will ever sell either until my muscles and bones can't handle them. I predict both will outlast me.They will pull a 28" bar really well. Even though the 6401 has less displacement it has the same stroke as the 7900, so the make great torque, and will eat other 60cc saws up.