Struggling on Mat edges

I find the hoover always starts at the edges of mats and either pushes it out of position because 1 wheel is on and one off or as it moves to the corners, they get pulled up and folder over and the robot ends in a tangle! Can I suggest a better approach would be to drive to the middle of the mat first and then work outwards? At the edges if it stayed 80% on the mat I imagine it would be less likely to catch on corners