Yeah. To be honest SMN is not the best DPS for the verges, but actually make a fantastic tank for the final boss. I did a run as PLD (me), SMN, DRG, WHM. Had Titan tank the Adjudicator in the corner while I handled the Sun Jurors (shield lob then DPS'd them on the block so they would despawn. After the third one, would join the boss and dps it in Sword Oath mode. When it came to the boxes I would handle the single on (since DRG is more dps than me) while when the doubles spawned we would each handle one. Give titan about 10-15seconds of ahead time to gain hate and it's hard to take it from him (though I had Provoke + Shield Oath on the ready just in case). Just command him to sit against the wall so the AoE doesn't target anyone but the wall and between an occasional heal from the WHM, Sustain was more than plenty.
I am not saying SMN cannot kill the verges, the only problem comes is that SMN dps takes a bit of a ramp up to hit, whereas the verges are charging from the moment they drop so by the time you can get there and start dotting/ruin spam it just isn't enough time. Could very well use Fester (gained at 35) after a Miasma/Bio/Bio2 for some spike damage. But I think letting Titan tank the boss is by far a better use of SMN attributes and letting the tank dps the verges down (if PLD can do it I have no doubt WAR is the same, if not better for this.)
Also Ramza, I see you are on Balmung as well. I'd be glad to come run this with you if you would like, not available most days until 9:30p EST. Message me in game (beside avatar pic)