I have a '11 F800GS and have still yet to find a good tank bag. I know, some people hate them... some people love them. I need one. Was leaning towards the Wolfman Rainer or Explorer Light. It can be a dedicated tank bag as I have plenty now for my other bikes. Looked at the BMW bag, until I saw the price tag. I know I can get better for less. What do you have and how do you like it? And where did you get it?