The Vintage 2001 is much rounder, fuller and a bit quieter on the nose. The 100 proof looks fresher, more closed and somehow younger. The 100 proof probably needs some water. Then he opens something with water. While the fruits of the 2001 go in the direction of dried apricot with citrus fruits, the 100 proof is more of a green, sour apple with citrus fruits. It is similar with the wood notes. The 2001 look a little darker with caramel notes. With the 100 proof they are rather fresh. The special character of Springbank comes through better in the 2001 series.
In the nose with the Vintage 2001 a nice balance between sweetness and spice. However, the seasoning increases significantly over time. I don't have much fruit anymore. Then spring banknotes. It gets drier and a little mineral.
The 100 proof is surprisingly sweet in the mouth at first. Then a mixture of acidity and bitterness. The spring bench character is not so pronounced here. With some floral notes and finally wood spice.
I like the Vintage 2001 better. I find the overall more harmonious. The 100 proof seems a bit rough to me.
I just poured a little sip of the 12er CS (WID: 105550). For me it offers a more balanced package. Clear spring notes, with some fruit and wood spice. So the 12er CS wins against the other two.