Had a go at this today, realised my 1" spacers were far to big from the start so I cut them down to 1 just over half inch and 1 just under........and they were still far to big and the bonnet hit the wings at the back.
Have given up as your only able to lift it ever so slightly and although that might
help a little it just looks like you have a poorly fitted bonnet....I don't think you'd raise it to much more than that chap has already posted earlier in the thread.