Will a Pool Rover Plus break the water's surface enough to damage an automatic cover?

I am thinking about getting a Pool Rover plus or Aquabot Turbo C. One of the main reasons I would be getting an automatic pool cleaner is that despite having a cover, tons of leaves manage to get into the pool each winter via a small gap between the cover and the deck.

In addition, retracting the cover during the winter is a pain because there are many more leaves ON the cover. They are usually wet from rain and my shop vac can't suck them up well. It is easier to wait until spring when everything is dry then retract the cover vacuuming off the leaves as I go.

I'd like to have an automatic pool cleaner that can suck up the leaves in the pool without me having to retract the cover.

Does anyone know if these cleaners will damage a cover?

If you have an aquabot, what does it do when it gets to the water's surface? Does it rise above the surface and if so, by how much?

Thanks!

Steve