I don't, if I can help it. I'm not exaggerating, trust me, you park a bike on the road with an easily removable and visually obvious fuel source (like a red Jerry can/rotopax) on the bike, overnight in some areas of somewhere like Glasgow or South London, one of three things will happen: 1. If you're very lucky, nothing will happen. Do it for a week and I can guarantee you that it will. 2. If you're lucky, they'll just steal the fuel to put in their own car/scooter. 3. If you're unlucky, the kids who come across it will be under the age where it is any use to them and will use it to torch something "for a laugh", which might possibly be your bike. Why do I live there? I don't and I wouldn't; but I do work in these sort of places sometimes. ----- Back on topic; I am still torn by the idea of the bigger fuel tank. I like the idea a lot, but the TT ones has too many concessions for the cost. Anyone heard of any other ones in the works?