Yeah, 7 Leaves is good, and I like to use it as a base for more potent flavors. LOL, there is ALWAYS something new to test, isn't there? Mixing is a great hobby with an endless universe of flavors to explore.
The Oakwood is interesting. I read somewhere a method for taste testing whiskey. You put it in a shot glass, then cover the glass with your palm and turn it upside down for a moment to get some on your hand. Then you rub your palms together really fast for a few seconds. This burns off the alcohol so that when you smell your hands, you can get a feel for the flavor without the burn of the alcohol impeding your senses. This helps you know what notes to look for when you're drinking it, too. Oakwood reminds me of that whiskey flavor without the alcohol. This makes sense because whiskey is aged in oak barrels. If you've never done this and you don't have any whiskey to try it with, the next best way I can think of to describe the flavor is barbecue sauce. Kind of sweet and tangy, but woody too.