Actually, the research labs are funky. I tend to move them in groups of five, and inevitably they get broken up in .15 and .10 fractions.
I've taken to moving them by SM mode, simply because of this-- I need to go into the window anyway to fix the fractions, and my civilians have PLENTY of 50 cargo hold ships to move them around, so we just do it simple mode
its just from earth to mars, dumping in 5 more stations every time mars gets 5 million more workers