I might need a regas too. Whenever I turn on my air con, hot air blows out, it's not till I press that button that has a u-turn arrow inside the car then it gets colder.
Is a normal regas covered by warranty?
To answer your second question, I get a bit of air blowing down at my feet (even though the dial's pointed at the face icon), I've always thought it was normal. Plus you get a little feet comfort whilst having face comfort