Yeah the only stuff I could find about actual orbital refueling was basically some tests with cryogenic fuel pumping on the ISS, which had some fairly serious problems, and a few times that basically a small satellite was refueled / serviced by another small satellite, which yeah as you say, just deliver a tiny amount of hydrazine, an exceptionally less volatile and easier fuel to deal with.
I appreciate your expert input!
Yeah the only stuff I could find about actual orbital refueling was basically some tests with cryogenic fuel pumping on the ISS, which had some fairly serious problems, and a few times that basically a small satellite was refueled / serviced by another small satellite, which yeah as you say, just deliver a tiny amount of hydrazine, an exceptionally less volatile and easier fuel to deal with.
Hydrazine isn’t less volatile or easy to deal with. Not unless your point of comparison is that one fluorine test rocket.
Here’s the MSDS on hydrazine: https://nj.gov/health/eoh/rtkweb/documents/fs/1006.pdf
It’s easier to store. Aside from it being the single most hazardous chemical substance known to man, that is