Well, the obvious solution is to build more sphere ships!Aside from some grumpiness about how Halley-modified phaser emitters are useless on any other design
Damn, the full shuttle deck option is pretty much Galaxy-class tier (if I'm remembering correctly)![ ] Shuttledeck [8 Engineering, 32 Type-F Shuttlecraft]
[ ] Loading Deck (4 Engineering, 16 Type-F Shuttlecraft, 6 Cargo]
Even a simple loading deck greatly outclasses a later Constitution-class
The 2260s configuration of the Constitution-class carried a standard complement of 4 shuttlecraft, some of which were Class F. (TOS: "The Omega Glory")
The class contained at least five cargo holds. (TAS: "Beyond the Farthest Star")
How many shuttles will the Newton design be able to operate as standard? That's the thing that's going to swing it for me.