A better propulsion system...or just more (reaction-)mass to play with? Starship test hopefully this Monday. :-) Let's see, Juice is 2.4t dry and 6t fuelled,

A better propulsion system...or just more (reaction-)mass to play with? Starship test hopefully this Monday. :-) Let's see, Juice is 2.4t dry and 6t fuelled, so 3.6t fuel. Starship has a planned capacity of 150t to LEO, and there supposedly will be a tanker. So a probe that's 60t fuelled instead of 6t seems not entirely unreasonable. Distribute between "go faster" and "even more science" to taste. And/or add a Vasimir, once on station use the electricity to power the instruments. Nuclear power or humongous array of panels.