One thought I just had. In CMANO, planes don't burn less fuel as the amount of fuel they have decreases. This has an impact on the drop tanks even as they exist now. If the impact of the drop tanks on flight range is based on their weight when full, they are not as effective as they should be. If it's based on their impact when empty, then they are more effective than they should be.
On the other hand if they are averaging the impact of flying with the drop tanks over the entire flight, they could have an impact that ends up somewhere in-between (although it can't be perfect with mid air refueling and various weights of other loadout items). If so, being able to drop the fuel tank mid flight would mess with that average, and nescessitate a more complex fuel weight calculation for consumption.
PS (more tests I should have done before I posted): I did a quick test with the editor, reducing the drop tank quantity under weapons had no effect whatsoever on fuel burn rate (although it does reduce max fuel and reduces current fuel to max fuel if greater). On the other hand when defending against a missile, the absolute onboard fuel quantity affects the weight fraction, and thus the agility. Without any changes to the game engine, jettisoning drop tanks will only have an impact if it reduces your maximum fuel below your current fuel.
TLDR, drop tanks have no weight, no drag, free fuel, but if you end up if a dogfight with more fuel due to them, you take an agility penalty. I don't know about RCS changes, but the drop tank database entry is pretty empty, so it's quite possible they have no impact there either.
< Message edited by Zanthra -- 2/28/2019 5:01:37 AM >