There is one kind of sharp smoky note that they both share that really defines the Cool Water/GIT smell but I can't find out what it is. It doesn't seem to be any that they share in their note pyramids.
Is it the sandalwood? Musk/Ambergris combo?
Please somebody knows what I'm talking about!
Asked myself about this and thought that it might be:
Duplicate post. See original with answer here: http://community.basenotes.net/showthread.php?t=239928
Yes, I agree with sofresh, it's an aromachemical called dihydromercenol.
Thanks for the Link DocmanCC