What's up man? I've been playing UWx for a very long time. I played Esper for a long time (I even have a huge Esper tattoo on my leg lol). The problem with
pure reactive control is modern is it's very hard to win. Especially since there are lists (
Bant Spirits) that run 8 copies of cards that basically say, "Counter
Supreme Verdict." What kind of control are you trying to play? I'm currently playing Saheeli Combo in Modern. It's basically an America Control shell, but with the Saheeli/
Felidar Guardian combo. So it's a control deck that gets massive card advantage and then can just win on the spot. Let me know if you're trying to play tap out control, draw-go control, or if you want kind of a tempo control deck. I've played them all and I can definitely tell you what I've done that works.