Sometimes, MAC chat is a right pain, but sometimes they're just awesome. I couldn't find the opening times for the counters at Gatwick, so I started up MAC chat. They didn't have the information either, but the person I talked to looked first on their own system, then on the internet, and then called up duty free for me. The up-shot of this is that I now know that I can buy Rich Ground fluidline at 6 in the morning, and I have to decide whether to get the 263 to go with it or whether to stick with my 266.