I, similar to a few who have replied, also like an extra fast for just a couple of my lighter set ups. Mostly just lighter jigs ML/XF as well as vertical jigging(m/xf) all with lighter wire hooks for a quick easy hook set. These are spinning rods I use for walleye which often bite lightly and spit the lure out quickly. As far as bass fishing I don't think it is as important, but I haven't done nearly as much bass fishing.
If you really liked the ned rig i'd recommend something like this as I would imagine it would work great with an extra fast rod.