I know what you mean, but when I play an arch top through it it's all there, very easy to get a good sound for any of the arch tops I happen to have. Having a 5 band eq I would think you could dial in what ever you want for any guitar - except any kind of break up, that's not gonna happen.
Jay Wolfe's shop advertised that they Plek'd each Heritage that came into their shop back in the day. Not sure if the variability of Heritage guitars from the factory prompted that move or not. I bought two Heritage guitars from him, one new (H555) and another used (H575) and both were set up perfectly.