If anyone knows.
How do they compare?
I (6'4" 235) have both, and I did all of my front side skiing on those two skis this year. I started this season on the 183 Crimsons, when the 186 ABs arrived in January there was a little overlap, but I find myself choosing the the ABs over the Crimsons every day now. They seem to hold an edge and carve better in situations where the Crimsons get all chattery, and they are more stable at high speed. The Crimsons float a little better in untracked fluff, but they don't pound through crud as well. Mind you, these are earlier, pre- titanium Crimsons.