The presence of bumpstops is typically for 1 of 2 reasons, 1 to ensure that the stock tires never contact the inner fender with the stock suspension, 2 to ensure that the stock shocks and springs are never taken outside of their mechanical limits.
I felt under the fender and have maybe a finger, 1/2", of clearance with the bumpstops uncut before the tires eat fenderwell. Seeing that the car was riding on the bumpstops themselves I do not feel comfortable cutting them to see if she wont scrape or blow a shock in the near future.
We all yelled at the kids with FE1 struts and shocks when they dropped on sportlines and didnt buy Koni shocks that they were gonna blow their shocks, why should this be any different? I was one of the koni/sportline guys at the time so I couldnt imagine how it woulda rode on stock shocks.
Now you may say "but you've already got FE5 shocks, so you should be good." Sure its possible, but I'm pretty sure that the shocks still have the mechanical limits at around the same place, they are not meant to be taken down and run around -2 -3 inches shorter than stock. Other problem this poses is I don't have the alternate transmission mounts or steering rack spacers, I know what happens when you ride low, I broke an outer CV riding on sportlines with the last car.
Moral of the story/rant: If I do end up going that low, I'm going to do it properly so as not to break my brand new car