So I decided to run it through Coriolis, and here's my current ship
Mad Hops (DBX)
Using mass manager, this DBX gets an unladen jump range of 64.56 light years and a total range of 450.73. That's 7 full range jumps and I'm not sure I can do that on a single tank, but let's just roll with what Coriolis is showing.
If I swap it to Deep Charge, it actually drops the jump to 64.54, a difference of just .02 on this C5 FSD. But the total unladen range drops to 396.63, a difference of 54.1 light years. What I don't know is if Coriolis is accurate, but if it is, mass manager basically buys another jump on a single tank over deep charge.