Actually the Enterprise subtype would be the second edition, given it has bigger impulse engines, cloak detecting sensors, and a new targetting system. Lakota would be the third generation.
that could be considered a general upgrade, the Lakota was tampered with so much that it was able to cause a lot of trouble to
the Defiant.
It seems logical that the dorsal weapon pod could be upgraded to burst-firing quantum capability.
why? its only pulse fire as it is. & the fact it has about 15 of these pulse fire tubes means it has quite alot of firepower as it is, i doubt starfleet would tamper with this design, only to decrease the number of tubes overall just to give it quantums in the weapons pod.
There are 8 quantum and photon tubes on a Sovereign in addition to the ventral rapid fire turret:
http://www.ditl.org/index.htm?daymain=/hedarticle.php?5DITL comes up with a salvo strength of 37, which is a VERY conservative estimate. In any case, these salvos would take 3 seconds or less to fire, reload, and be ready to fire again.
I've also assumed that all the photon tubes have been upgraded to quantum capability, which seems reasonable if Starfleet had begun mass-production of quantums
you seem to assume alot

since when have you ever seen quantums on a soveriegn being fired from anywhere other than the turret? in first contact the quantums were fired openly, but only from the turret. In nemesis, the quantums were fire only from the turret, even when they had forced the scimitar to decloak, photons were fired from the other tubes when it was outside the turret's firing arc. now this is either because the burst fire tubes aren't big enough to fire the quantums or it doesn't have enough quantums to equip the other tubes, either way these "statistics" you have come up with don't mean anything :geek: