I found that the strips can be removed by gently pulling them away and cutting the adhesive with a razor blade. The adhesive is not resistant to alcohols so methylated spirits will soften it and make removal easier, especiallly the residual left after the moulds are removed. A sharpened piece of wood (it's soft so it won't mark the paint) used as a scraper helps. Rolling (if that makes sense) the adhesive is easier than just scraping too.