What about Barges?

[LuckyOne]

One future path for the Barge could be to turn it into a 2 player ship: the Pilot (or Navigator) and the Barge driver. Barge would be unable to use TLs but have high cargo capacity, while the Pilot could use a fast 425 / 450 speed ship that would enable the Barge to form up on it and go faster than its regular cruising speed.

The math would have to check out in such a way that using this setup would be worth more than using two 5kers cruising at the regular 350 speed, so it would be quite profitable for the Barge owner, enough to pay the Pilot just over the regular 5ker rate.

Of course, in systems with infrastructure present using a 5ke would still be more profitable than the Barge duo.