Blue Emu, I feel like if I cut you, then concentrated craftiness would pour into my goblet and I could drain your power into my own. The "refuel from" and "unload 90%" loop is ridiculously amazing and simply. I've been scared to tackle sorium harvesters for this reason, but this looks very handy.
I also love the tanker+tender idea, that allows for some easy fueling wherever you're doing things. I'm likely to make a Collier+Tender as my military support mothership. I've always loved the idea that the biggest ships in my war fleet are hardened civilian behemoths. Four times the size of a dreadnaught, but vulnerable to many things and mostly there to provide quick refueling and rearming and maybe repairs. For Aurora, my version of the ship would be a massive collier+tanker with enough cargo to carry a few ordinance factories, infrastructure, and cryo, to set up temporary forward bases. But I'm getting distracted. Your idea behind sorium and tankers is fantastic either way.
