I run mine inverted, I haven't clarified with qa1 yet whether they recommend it or not yet as I just put them on but I haven't had issues yet. Their website says it's alright to invert the circle track ones but I'm not positive about the street series. I had to grind a little bit off the top shock mounts but not much.
I actually did try flipping them and it was close but will require some grinding. I am going to put it up on the lift soon and figure it out.