John and Angie Partin wrote.." An example of their techniques was when the Apistan strip was changed so that it wouldn't last as long or work as good". What's all this about? When was it changed and how? Max Dr Max Watkins Vita (Europe) Limited Tel 44 (0) 1256 473177 Brook House, Alençon Link, Fax 44 (0) 1256 473179 Basingstoke, Hampshire RG21 7RD, UK