It is my most humble opinion that even if the Fed DE and DE+ had true "G" racks and not the SFC "A Rack + ADD", the ships would still be very unbalanced. The basic problem is that a destroyer with 4 drone racks is a drone chucker, and the feds (quite frankly) are not Mirak.
In general, this is also a case where the powers that be just willy-nilly added a whole-bunch of big systems
to ship that probably was cramped to begin with. (note that the Fed DE also has a 4 slot shuttle bay)
I have now decided to do the following for my personal shiplist:
Fed DE: Take a standard DDG and change the 4 side P1's to PG's.
Fed DER: Take a standard DDL and change the 4 side P1's to PG's.
Note that for the DER, the ship has no drone racks or ADD's. But these ships are nominally placed on the Romulan border where Plasma F's are far more important. Both DE and DER would carry two shuttles base and no deck crews.
Lord Shutpp (pardon spelling) released a really cool Aegeis fed DD (A Saladin derivative with a sensor dome above the impulse deck) called Pegasus. (just do a search in this model forum to find it) I am now using this model for the DE's. I am thinking of some custom specs for a DEA to appropriately use this model (I am thinking take a DE and adding special sensors and double drone control - maybe adding an extra tractor)
Your milage may vary.