HolmenTree
ArboristSite Guru
If you're running a 372 with a 24" bar or less, and you're not using a 8 tooth rim, you're leaving a few nuts in the sack.
With the 372s high top end speed a 7 tooth rim is perfect for it no matter what length bar you got on it. My 372 came from the factory with a 7 pin. Thats what this saw is designed for. Lets say its just the right gear ratio.