You'll get used to the wind - lean into it - push back with you chest muscles - it will make you feel like a man - grrrrrr
. You should also be gripping the tank with your knees - pretend you're standing up trying to hold a watermelon between your legs. Once you wake up these leg muscles to do this you'll find it also takes pressure off your butt too. Despite this if you haven't been riding sports bike all your life your body will need time to adapt - there are muscles you are using that you probably never have before.
Now buying a BUSA for touring may not be the best way to go unless you're 21 but it depends what you mean. Touring for 2-3 hour stages once every weekend with friends that have sportsbikes and like the twisties or a 3 month trip over the Himalayas?
If it's the former I think you got a good choice once you get used to it.
If it's the latter then you'll be better off with a KTM 990, 800GS or Tiger. I like the 800GS for a mix of road and trail but the KTM is much better in the sand etc as you might expect.