Iron the top!!! It will go on the machine much easier and not have any hidden wrinkles.
Clean up the top of stray threads and lint and pet hair.
Square up the top.
and all the rest.
Oops, check with your LA person. They might NOT want to do your tops if you smoke. This is becoming more common now. I know I won't do a smoker's quilt as my machine in in my home.
I don't stay stitch the edges of my tops as I do that with longer basting stitches when I put it on the HQ frame.
ali