I'm considering getting the two bike version(mini bomber) of the sea sucker rack for the full glass roof on my model S, so I can put two adult hybrid bikes up there and fit the trailer and trailer bike in the trunk. I've heard reports of the sea sucker cracking the glass on the model 3. Anything like this happen on the S? I've also seen a pic online where someone mounted the sea sucker rack on a S, so that front part was actually on the rear hatch glass near the hinge, and the cups under the rear wheels were actually on the paint behind the glass. Is this a better place than on the roof? I would think that being all on the hatch back would be less stable overall. Are the monkey bars a better option, I already have some fork mount racks from a regular roof rack system that would fit them.