I set myself a challenge, which I encourage EVERYONE to take up. 3 or 4 decks, ALWAYS in the mix.
The idea that controller DJing is shit and easier than vinyl shits me so much. I've done vinyl for god knows how long, and I was good at it. There are COUNTLESS digital DJs who don't know what they're doing or have an ear for it anyway. You still need those things, regardless of your sync button. Sync is ONE part of mixing that digital makes easier. ONE PART. And it's NOT perfect. You still need to know. It means you don't have to spend half a record cueing it up, and all that time you save is time you get to be creative instead.
Seriously saying beat matching by hand on decks is necessary is like saying artists are shit unless they make their own paint. They can. I can mix on 1210s with headphones too.
This is my first go. Couple of slip ups, couple of syncopation misses, some bits better than others but I think I just about pulled it off.