Aerial Acoustics Model 9

I just purchased a set of Aerial Acoustics 9 yesterday used and i’m looking for input on placement. My room is approx 29’x17’. Right now I have the speakers placed slightly toed in towards the listening position with the speakers being 44” from the side walls and the back of the speaker 36’ off the back wall or the front of the box is 55” front the back wall. My listening position front the face of the speaker is 12’ or approx 16’ from the front wall/13’ from the rear wall. I know these are starting points but i’m Looking for any advise from experienced 9 users to try and get optimal performance. They sound pretty damn good out of the boxes but i’m Looking for maximum soundstage and normal size imaging. Also, one last thought. The 9’s I purchased came with Sound Anchors with EdenSound Bearpaw elevators. I noticed when I raised the speakers onto the Bearpaws, the bass became muddy, loose and a bit over powering. I removed the Bearpaws for now and spiked the Sound Anchors with the shorter set of spikes provided and everything tightened up again. Could the bass issue I encountered be due to raising the speaker up higher and since the port is on the bottom, allows too much air to release and also doesn’t acoustically load the speaker enough? IDK, any thoughts?