I am not sure what you are referring to when mention the "stabailizer hub" but I have got replacing blade grips down to a science. I think I can replace one and be flying again in less than 5 minutes flat. Like they say, "Practice makes perfect." and boy have I had a lot of practice replacing blade grips!!

Congrats on the new heli. Just take is slow and you will be hovering all around in no time!