I ride both the Union SL and Atlas and both would suit this board well.
I currently covet the Union Team Atlas with carbon infused baseplate (the SuperPro) for my all mountain board. It's the same as the SL with a stiffer highback. I'd recommend that over all.
Atlases would be rad for your riding style chatty.
Extremo, not to thread jack, but I'm not certain taht the team atlas/super pro have carbon infused baseplates.
I think it's just an atlas with cool colors and a team highback.