If you are referring to installing the ISO Acoustics footers, I had someone (wife) tilt them to the side while I installed the footers and carpet spikes. I did have to loosen the base a bit to get the original spikes off.
I started with a placement that is pretty close to every speaker I have had in this room. That is, approximately 8 feet from the back wall and 11 feet apart and 4 feet from the sidewalls. And, I am sitting about 11 feet from the center of the speakers. I use very little toe in.
Are your speakers new? If so, give them a couple hundred hours to break in.
Merry Christmas!
ozzy