I bought the CB Musk and Burning Leaves in oil form. The musk is a bit nasty, but Burning Leaves is actually very nice and extremely long lasting. The oils are, I suppose, meant for layering. I layer Burn. Leaves with the ever-so-light Cabot's musk oil to give it a smokey edge. It works very well!
If the oils were'nt so pricey, I'd buy more. I would like to get Winter: 1972.
The bottles are so small, but a few drops of the scent lasts for a very long time.