Ya I don't see a point in giving BLU a lower tier Dual wield, we already get it as is, and honestly, if your going to do physical magic these days, your going to sub /NIN, because god knows you steal ungodly amounts of hate by doing the spells. It can only benefit you to invest in NIN, although I hate the idea of the old days where /NIN was mandatory if your frontline, its only practical. Its like DNC that use /NIN, its not that the dual wield really benefits them anymore, its because when your DNC your doing all kinds of stuff that pulls hate really easy and your going to tank unless you have a PLD on the ball or somethin. So you need them shadows. Lower levels if your not going to dual wield, invest in an Archeron Shield, or get a few friends at 90 to knock over Genbu and get a Genbu's Shield. Those are your best alternatives to dual wielding. Yet at low levels it is true, your sword isn't as important as it is in higher levels, and although I wouldn't say all you do is casting, because your sword is just as fundemental as your magic is (can't use chain affinity better if you ain't got the tp, brother) but pretty much low levels is all about Sprout Smack + Wild Oats + Bludeon + Headbutt + Wash + Repeat.