My son in law dropped of 4 big Cherry logs yesterday and I thought I’d buck them up so I fired up my Dolmar 6100 with a new 20” bar and chain and it wouldn’t touch them! I mean hard as a rock. I go over to some maple right next to it and rip through it like butter. My question is, these logs are 24” in diameter easy. Are big Cherry known to be that hard? Any ideas on what I need to get through it saw or chain wise? Never ran into this.