IDK why you guys find it a necessity to have all these hm's in your team. I have like 1 pokemon with them all and i switch him in and out of my team as i find it necessary. And for flying I just use a random flying type when I need to and box them afterwards. I guess you guys are just lazy and want to carry them along.
The only hm that my real team might carry is Surf.
That would be right in advance of corocoro too. 
