So I have an original X1, and it's been great as a supplement to my Herc RMX as a way to control FX, especially.

I recently got an F1, and will soon be getting another, and the S4

My "ideal" setup is an S4, flanked by F1s, - two track decks, two remix decks, and as far as I can tell, everything I need covered by those three controllers.

at that point... what is my X1 Mk1 going to offer me? I have this overlay for it to let it control sample decks when you have a second X1, but sample decks are no more, it can control the FX.... but the S4 does that, it has cue buttons... but the S4 does that, it has browse wheels... but the S4 does that. you see where I'm going with this.

With the hercules, the X1 is a game changer - but once I go S4... do I keep the X1 Mk1, and if so, why?