[brucepick]

In theory, I'll buy that there's more gain to be had by putting a kamm back or boattail on the rear, vs. cleaning up the front.

BUT the front is a lot easier to work on, assuming you don't have a full shop lift at your disposal. And IMHO, the underside is also easier to work on than the rear - though much more challenging physically than the front or hood. In general of course. YMMV as usual.