Ideally if you know you want a bonnet strap, you should miss the relevant area when punching the louvres, that way the strap sits closer and aesthetically looks better too
If my memory serves me correctly, the 70th Anniversary 4/4s had missing louvres, where the bonnet strap was positioned.
My 2003 4/4 Runabout has fewer louvres, so the strap sits flush to the bonnet.
Bud
4/4 - Stanley
