SA really isn't an issue if the consoles are adjusted on those ships, which seems to be the case. Keep in mind that the two ships with SA are suppose to be Science based.
424 should be a better balance than 415, but I really wouldn't mind seeing it at 433 myself. Mostly because I was only using 4 of the 5 for actual tactical consoles. The fifth slot was the Borg console, which can just be moved into Sci.
Gonna have to run some tests.
If you pulled SA from those two ships, you can expect to see sales drop as it is one of the selling points.
Lastest parsing puts the Command Bortasqu in line with the 2yr version if you run 3 tact consoles.