They are really tough. Cutting them is not easy depending on which type you chose.
I JM won't have a problem cutting them in the studio at all. It took me a while and anybody with a Pro-Line cage will know the vents are pretty small up in the corners. I didn't need to cut much.
Back to your question, I think you would be fine if you wanted to use one of these.
Are yours fastened to the back of the cage or just free standing?