Thanks Adrian, I'm very happy with the results :)
We didn't want to go too far with the roll as I've heard that the more you roll it beyond 45 deg, there's a much higher chance of the paint cracking. Also, even if the tyre scrubs a bit now, the guard wont cut into it badly because that sharp edge is pointing upwards now. I only heard it slightly rub ONCE on a 30 min drive in the hills, compared to on almost every corner/bump before!