You're right Russ. Your present bonnet badge is fitted through a hole in the bonnet which is in precisely the right place for the main fixing of the leaper. There is a small spigot further back for which you would have to drill another hole which is designed, I think, to keep the leaper base straight. That hole would not be essential though as you could saw the spigot off if you wished. The leaper does have an adhesive pad underneath to hold it in place while you tighten the fixing nut. Personally, I didn't have a problem with drilling the second hole as the spigot is some 5mm in diameter and the base at that point is roughly 12mm so plenty of room for error if necessary :)