3rd Job Dual Blade Training

No, this isn't a thread asking where to train. Just a question about control.

I was messing around with my DB, and ended up jump-casting US, followed by an FA-BS combo. I was wondering if it's actually viable to try and get the timing down to do this or not, considering you'd be throwing in extra damage on the way up to cast FA. Trying to reproduce it was a little bit of a peach, but I think it might be a nice little way of adding extra damage to your attacks, if it's needed. Because just using the FA-BS combo is definitely a lot easier than getting the timing down for this.

And if this is already known...well.

Any takers on this?

Putting FA (like plenty of other mobility skills) on its own macro helps with the timing immensely. US + FA has very limited use because it stops FA from being able to rush the mob, so its only real purpose is as a finisher.