I was thinking about putting one on the back of my rollbar. Since my car will never be outside during inclement weather, the top will always be down. I just can't find a way to do it that wont look ghetto.
As as strength goes I bet you could cut a slot and then weld in a "box" to recess it into..that would re-strengthen the bar after cutting it. But first you would have to figure oot how to cut it .......quite a few cutting wheels would be my guess