Aaron Chaim- I think the heter is only if Shabbos is Rosh Chodesh, not if Shabbos is on Sunday like it is this year.
Sam2- So how does one who regularly shaves start growing a beard if it will look scraggly the first Shabbos?
Who said its not kavod shabbos to have a scraggly beard? If Halacha says something then that is kovod shabbos. (not to be dramatic, but how far can you take this?)
Does an avel shave erev shabbos?
Have you asked your LOR?