Hey Bighoss....
We are all looking for the "One Knife" that will do all the things we want to do better than any other
Knife that ever is or ever was....... I have been on that quest for most of my life and can only say,"I'am a workin' on it!!!.......I think I am getting closer if the knife is in my hands..... CMRickand I were doing comparisons between the 9, 20 and 21 yesterday and it was interesting.....we were in my neighbors bamboo grove, cutting culms that were two to three and a half inches in diameter.... The thin wall one year growth culms yielded better to the 9 and 21 and the older thicker walled stuff was easier felled by the 20...... As we all get used to the new tool I think the consensus will be in favor of the twenty, as it has a bit more weight and reach and damned good balance..... Thanks for trying to be objective...LOL....
Ethan