I have a 2008 Q7i that we mounted a Samson tower to without any difficulty. That being said, our tower came with machined mounting plates that allow the tower to fit more naturally against the hull (i.e. the plates are contoured and aren't flat) to reduce compression stress as well as backing plates that we mounted on the interior of the hull to spread the weight more evenly. We have used our the tower for 2 seasons now without any adverse effects. While I can't speak on the mounting of either Aeriel or Monster towers, I can tell you that we didn't (and don't) have any issues.