I've recently come across a crossroads in my dj'ing. Trackselection, I find myself writing down all the track transitions and double drops I think work well. Alot of the times I see headliners doing flawless transitions and each song sounds great into the other. Take Friction for example (i know he's pretty much one of the top but), all of his transitions are beautiful and each song sounds like it was created to move into the next. I wonder, does every DJ keep a list or is it all in your head after dj'ing for (x amount of time)? Whats your method?