If you ever have to do anything complicated with any grant, but PARTICULARLY the K99/R00 award (since nobody has any freaking clue what is going on with this thing because it's such a new grant):
MAKE SURE YOU HAVE A PHONE NUMBER FOR A USEFUL PERSON AT THE NIH
And hope to god that person answers their phone, has time to talk to you, and has the bandwidth to figure out the details of your questions. Because getting the paperwork figured out for this thing is like herding cats. Everytime you think you have something taken care of, you find another one (or even a back-around of the same one) stuck to some sticky surface and you have to re-dig out what the hell is going on with it.
This is like a nightmare, like a real one: where you just keep endlessly, endlessly going over and over or trying to solve the same problem and just keep finding yourself back where you started. The kind where you wake up with a headache from the grinding pain in the ass of it all. HOWEVER because of the helpful people we have identified, it is going A LOT better than it could be......