According to experimentally conjured formula for hyperspace fuel consumption found on
wiki which coincides with my personal experience, the fuel usage is
increased by:
- ship mass divided by optimal mass (obviously)
- distance (obviously)
- FSD class (!!)
Moreover, distance and FSD class combine exponentially in that if you jump a bit further on a ship with a higher FSD class, you get an exponentially higher cost in fuel.
What this means is that bigger ships with higher-class FSDs will
automatically consume more fuel, which pretty much
necessitates a higher class fuel scoop just to maintain the same low scooping time that smaller vessels sport. In other words - bigger scoop means jack s**t on a bigger ship unless the scoop is bigger by a huge margin (several classes).
What is also evident from the equation (and what you can observe for yourself) is the fuel usage grows exponentially with distance - jumping 10% further with all other parameters equal means you're going to burn significantly more than 10% extra fuel, which means you're going to waste significantly more than extra 10% time scooping. That's the hidden cost of running Deep Charge experimental.
Whether or not these relationships negate the entire benefit of having a longer jump range in a bigger ship depends on the situation (a longer range may be necessary to reach a star you wouldn't otherwise be able to reach at all), but in most situations from my limited personal experience - it's a very blurry line, definitely not as clear as "more range good".