Hello.
You're sayin, 0-Atpl in the US, but want only M1 visa?
Man, if I had enough dosh for J1 straight away (all vital funding to get me throught to CFI/CFII in rotary - helis, I'd jump).
M1 won't get you legal instructing work. You're aware of that fact that it's the most welcome thing for folks returning back home wherever that is, from USA. Especially JAA land...
How come that when you've gone through TSA website (no sh1t, nobody mentions that here, but should be done before getting I-20 from school) and getting I-20 soon, you're asking about all the standard paperwork??
Either bit too lazy to look it up here - zillions of posts re visa and paperwork to US, or your school doesn't care (????) to let you know all the stuff, or I ain't got idea.
BTW, RE US VISA INTERVIEW:
It took me under hour from showing up at the gate and leaving the place.
Could have been 10-15min faster should I have turned up early or on time.
PS: US Consulate in Belfast.
London. That must be pain :-/