I disagree with the statement that they are more useful for coasting than than they are for quick maneuvering. The Nevermore would be completely useless if it couldn't reposition or turn with the Burst Jets.
Ah, of course. Most of my experience with the Burst Jets come from using the Scarab, which is maneuverable enough to not need Burst Jets to turn quickly; I didn't use Nevermore quite as much since I preferred to fly the Desdinova. Still feels that it encroaches on the Arc Jet's ground a bit too much, but that is not a big deal.
the other change I have been considering is to make it fire a fan-shaped blast of flechettes, so it becomes like a "shotgun needler" that doubles as a great manual screen against incoming missiles. Any thoughts you have about this are quite welcome!
Sounds good. I think the 'shotgun effect' should be ridiculously exaggerated, it should have at the very least a 45 degree arc of fire but be capable of very high firepower if all projectiles hit at once, which would only ever happen at point blank range. The idea of an ultra close combat weapon is something I find highly appealing, and probably unique enough to not even need the EMP effect.
The Solenoid Quench Gun is already quite useful, it's terrifying for shielded frigates due to the enormous projectile speed and single shot damage - but I've considered upping the damage a bit.
While it certainly is effective against frigates that is not really much of an accomplishment, and they still aren't as effective against them as any of the other medium kinetics with perhaps the exception of the Heavy and Arbalest Autocannons. As a comparison, the Hypervelocity Driver has slightly worse damage per shot, DPS, and flux efficiency but nonetheless remains useful because it has a very long range (twice that of the Solenoid) and also carries a hefty EMP payload, making it reasonably effective whether or not the enemy has their shields up. Perhaps you could turn it into a kinetic shotgun like above, though the graphics don't quite fit that. Alternatively, you could emphasize the burst aspect by making it a weapon that fires an interruptable about four second long burst with an about six second long cooldown (I believe this is possible; if I'm not mistaken the Thumper and Storm Needler work by firing a "burst" that lasts longer than you can fire and can be stopped by releasing the fire button); that way you get to have a weapon with a long enough cooldown such that a quick ship is realistically capable of using to dart in, fire a burst, and dart out without making it capable of instantly overloading every ships' shields or requiring too much flux to actually use.
How do you feel about the Mantis, Gonodactylus, Serket, Krait and whatnot?
Given how light the Locust is it could probably stand to cost an FP or two less, but more importantly it (and as I'm sure you are aware) it needs a unique ship system to stand out. Perhaps a set of weak, regenerating drones; or maybe a really short but intense version of the burn drive.
The Gonodactylus is quite effective and has a very fun and unique weapons arrangement, though I find I don't use its Hammerclaw Impact Bolter very much since it is only a single light missile and it feels odd to group with other light missiles. I'd probably the Hammerclaw more if was a medium equivalent weapon (say by firing a burst of three 500 damage versions of the missile) and the current light missile slot replaced with an energy weapon, for either PD use or an Antimatter Blaster. Its ship system doesn't make it feel quite as special as the other BRDY ships but it serves its purpose just fine.
I haven't got the chance to play with the rest of the ships very much, will get back to you on that when I do.
Incidentally I just realized that the shortened form of BlackRock Driveyards (BRDY) is read as "birdy".