I'm strictly all abo. I've been doing it for years....I'm a bit of a purist, I guess. I like all abo and I'm good at it because it's all I've done. BUT, the antler tools definitely soften when the humidity rises, like right now in the middle of summer. Plus the fact that we've had rain like crazy here sure doesn't help. I dry my antler tools by carefully heating them over the flames on the gas stove, but I'm careful not to scorch them. I just want to dry them out and harden them. It makes a big difference and really helps, especially when you're making small, delicate arrow points which are my favorite and my signature type of points.