If it pops in your head, ask. That's my opinion, unfotunately my mind tends to go blank when I'm put on the spot. I've talked to a few breeders lately and after listening to their great advice, they always ask if I have a questions. Any other time, I could come up w/ dozens, but when I'm asked, I can't think of anything, LOL. I sent emails later though. The same thing happens when someone askes me what time it is; I completely forget how to tell time or even which wrist my watch is on. (What can I say, I was born a blonde.)
It may be better to have them do it before she comes home. She's used to those people and the environment. It would be less stressful and less risky when it comes to disease than taking her to another groomer later on. Most groomers know what face, feet and tail means or FFT for short, but don't assume either.