[stevenoble]

On the letters on the engine covers on F1 cars I paint the foil with Tamiya acrylic paint let it dry for 5 mins then very gently scrape the paint away from the raised ares with a cocktail stick or the edge of a scalpel blade.But you must be gentle and take your time so as not to damage the foil.I sometimes use a cotton bud/Q tip very lightly wetted with thinner in the same way but again be gentle with it.I have also heard of people using a very fine sanding/polishing stick to gently rub off the paint from the letters.Though I have never tried this method myself.I must admit my first few trys with the foil method were pretty poor to say the least,practice has made me better.Another option could be to get some photo etch letters if they are available.