I never really tested it, but I thought that the main difference is that Mass Manager is best for superlight exploration builds and Deep Charge is better for "normal weight" ships. I.e. deep charge makes the ship's jump distance less inhibited by additional mass (=how much range you're losing with each extra tonne)Although deep charge is marginally better for smaller FSDs, I find that (since they are in smaller ships) the extra fuel used makes it a bit of a pain - so I have started using mass manager in all FSDs.
Depends onwhich is appropriate?
With the latter you get more range per jump, but lower total range. Using mass manager instead also effectively speeds up your fuel scoop by ~3%, from memory.Basically this:
Mass manager on any FSD of size 5 or bigger.
Deep charge on any FSD of size 4 or smaller.
With this in mind, you can achieve higher effeciency and range. Though the differences are, barely minimal, at best. (I'd still recommend it though)
To maximise jump range with a single tank unlock and install a Guardian Frame Shift Drive Booster. Jumps below the maximal additional jump range provided by the Guardian Frame Shift Drive Booster are entirely free.Always Mass Manager for me, even if Deep Charge gives a little extra jump (depends on FSD class). Mass Manager will always give the most range on one tank. Run a build through Coriolis with each, but note the total jump range figure. For most of my ships it equals almost one additional jump per tank.
Imperial Courier flies faster in normal space with deep charge I think.
At least this one ship I have with.
YepWitchcraft!
Probably 'cause deep charge has less mass![]()