Marksman Building?

As shown above, getting 27 MMB and 29 SE is pretty much the same thing, however 29 SE will be much more appreciated at bosses and in parties than boost. Like you and a lot of earlier archers I thought SE was pretty much 'for the timer' after level 1 and so I sometimes felt a bit retarded when I soloed during my 2x instead of looking for parties, but it turns out that it didn't make much of a difference in dps.

Maybe you have a bunch of great friends that don't know any 4th job archers and would love to have you / have level 9 SE, but with more points into SE, you'll actually be taking down these bosses a bit faster.