Seriously?
If every point is optimized, then the less throttle/map you need to to keep the car moving forward, this includes cruise and is therefore also the tuning method that will give best fuel economy and nice cruise.
Surely you can accept that the timing that makes the best torque is making the best use out of the volume of fuel injected. That inherently makes driveability good.
Neutering the ignition map intentially to tyr to improve part throttle response makes no sense.
Well, its obvious that my English skilz aren't good enough to tell what I mean, what I'm trying to say is that if you hit the max torque at any given point your torque curve will be "bumpy", it goes up and down, how much, that depends what you have under your hood. Thats why oem people tend to reduce engines "natural" power at some points, to give it character they (and the customers)want.
One, rough example: stock redblock with stock garret, when you beat the crap out of it it will give maximum hp way under 5000, dies after that, that feels like diesel to drive, stresses your engine and drivetrain. That is what I'm trying to say here. If you reduce output at midrange by altering ignition, afr, boost and such and set the max hp point at 6000, how does it feel to drive then?
One likes mother, one likes daughter.
Surely best possible timing will give you best possible economy.