The bonnet corners rub on the cowl and bulhead, and this eventually rubs the paint away. I'm not that keen on the leather corners which are available, but there is another way.
The first photo shows a small neoprene square which buffers against the hinge fastener. It's stuck with Bostik.

On the bonnet corners I've stuck some sacrificial electrical tape to protect the paint. This eventually rubs off.
Just visible here, vertical alignment, and the top is blackening.

On the front edge it's horizontal alignment with the edge rounded to match the bonnet shape.

This is the cowl - offside, and you can just make out that there's an oblong of red electrical tape onto which is stuck a small length of neoprene, which is just enough to buffer the bonnet.

And finally the bulkhead - a square of neoprene.
