[Psitticine]

QRs aren't too expensive in the latter part of the game when the RPs are really pouring in, and that's the same part of the game when you've got all those space-consuming extras to install. I tend to research Stellar Harnessing early and then Resupply later.

I do tend to research Resupply enough to get the first Emergency Supply Pod early in the game. It's a handy component to put on a support ship, just in case! I try not to exploit the Repair Bay/Emergency Pod combo though . . . I find it takes some of the fun out of the game to use the loopholes.