I get along fine with my
Wolfman Enduro tank bag. Yes it�s small, a third the size of the (expanded) Famsa at 6 litres, but it takes all that I need to have at hand (especially when coupled with a small handlebar bag too).
I�ve had bigger bags before, but always found that I never packed them to the gunnels and most of the time only used a fraction of their capacity. That, together with the fact I got tired of the acts of contortionism required to get at the ignition key, as well all the pi55ing about unzipping them to fuel up, made me consider a smaller bag. The filler cap is exposed with the Enduro bag fitted, so it�s very easy to live with. It doesn�t get in the way standing or sitting and suits the shape of the Ten�s tank perfectly.
If you think you can get away with something smaller I�d give the Wolfman some thought. It�s a nice looking bag and extremely well put together, with a quality appearance and feel.
Sorry no picture. Trawled the archives and I don�t seem to have a shot of the bike with it fitted, but you'll get the idea from the link.