Can anyone recommend a small to medium size tank bag for the Versys? Maybe a magnetic one that would stay in place on the unique shape of the tank? Unless a strapped bag is better. I am not a tourer and only need something big enough to fit some things in for a 200-300 mile trip. I saw a Cortech mini bag at the dealer for around a $100 that looked pretty good when I was buying the bike. What do you guys think?