Help choosing caster base range class ?

[Draxxion]

A little fun detail about RDM is that it is surprisingly more lag-unfriendly than even NIN.

RDM's dualcast is ultimately a buff that applies after your cast from an answer from the server. If your button press beats this answer you will start hardcasting your second spell instead of insta-shooting it.

BLM on the other hand is much less affected by lag on its core gameplay. At most you'll be unable to slide-cast at the 80% cast bar completion.

Ultimately its just a factor that matters only if you tend to be lagging.

With some of the lag lately I have seen in some instances due to ddos attacks or other factors I can vouch for this. But, it has only happened to me personally by something effecting everyone else as well.

[Gallus]

If you don't like RDM your other two choices are SMN and BLM. If you found BRD overwhelming you'll probably commite suicide with SMN, so your only choice is BLM. Even though BLM isn't a lot of buttons, be warned it's very punishing for screwing up, and has very little mobility (but it's still a very good job if you can manage).