ShasOFish

It tends to be a bit sloppy at the very end of the burn, pushing the blue node around to the point that it'll burn another 20-30 delta-V trying to fix it, often unsuccessfully. If you control the last little bit by hand, then it's okay, but it's just annoying enough to cause problems for longer flights.

Ah, I see. That's good to know.

Perhaps this question has been addressed before, but what role do the precoolers serve for the Sabre's in the game? I've used engines with and without them, and I've yet to find a discernible difference. Am I missing something? Gorgeous pack no matter what though; I've been on a spaceplane frenzy all week.