I've discovered on my '09 that it makes it much easier to refasten the two screws at the front of the tank if I first remove the long bolt at the rear. Once the front screws are turned down finger tight the rear bolt just slides into place easily. If I don't remove the rear bolt it is necessary to do a lot of pushing and wedging the tank forward to get the holes in the bracket to line up nicely with the screw holes.
The reason for this is the front p[late with the two bolt holes in it is actually "floating" on some shock absorbing rubber mounts. When you have the tank tilted back the plate slides rearward and the holes don't seem to line up. When you remove the long rear pivot bolt and attach the two front bolts first, the weight of the tank tugs downward on the tank and lines everything up for you.