We have found that our success rate with avoiding damage and tears to the aluminium foil during inking up has been much improved by using thicker aluminium foils. Most domestic aluminium foils are around 8 to 9 microns thick but some commercial or BBQ foils are much thicker. We have successfully been using a 20 micron Aluminium foil that we found on amazon. The details are as follows:
Testudo Alu Foil, Catering Foil, 30cm x 45m, 20 micron
£8.99 including free UK Delivery.