IF you were going for ECM/AP + Cluster Bombs, then yes, switching to a command and ECM/AP + Quad Lasers is a valid choice... Most of the time.
You save a few points, but your Dice change in the Arcs, and you now no longer have the capability of taking ECM+AP...
All are valid options.
I just feel that one or two of those are perhaps more readily useful, and perhaps more importantly, repeatedly useful.