Then again the Aoelus class cruiser had 2 really crappy anti capital ship beam guns. So a choice between that or a couple more anti-fighter beams, I'd go for the fighter beams. Besides, it makes up for that with a lot of armor.
True, the Aeolus' cannons aren't that bad, they just have a really long fire wait. The SVas's fire wait is about half the time (20 compared to 45) so I'd say they wouldn't make a bad addition. Maybe a subclass of the Mentu with Foreward Flak turrets 6 + 7 swapped out for SVas would be alright. Though I don't agree with giving the turrets the SVas's instead. The only GTVA ships we see firing beams from turrets is the GTD Orion, everything else normally fires from the hex points.
And we do know that there is some variation in the various ship designs. The GTCv Hawkwood in SM1-08 has a pair of SGreens and three TerSlash instead of just four TerSlash.