ADM Commodity Merchandiser interview questions

I first met the recruiter at a college fair. He asked me generic questions about myself and took my resume. A week later, I went to the local ADM grain elevator and the recruiter (who ended up being the elevator manager) and another merchandiser spoke with me for about an hour in a very casual, laid back interview. The point was to see if I could hold a conversation and to understand my strengths to see if I would be a good fit for the company. Two weeks later, I got a call from HR inviting me up to their headquarters in Decatur, and they paid for the hotel and all my expenses. Once up there, I met with two vice presidents of different divisions and they spoke with me for about an hour. Questions were very typical, "Why ADM", "What are your strengths", "How do you feel about relocation", "Why the Ag industry", etc. They didn't ask any questions about the job other than those. Again, they were looking for a reason not to hire me. The only complaint I have is that HR is very hard to reach. They seemed understaffed and I called them at least 3 times without a response before my interview, as I was unsure if I was even still supposed to be interviewed. Offer was $50k starting off with a $2,500 signing bonus and potential for a 5% cash bonus at the end of the year. My advice is to be very aggressive. If they see you're aggressive in the interview, they will want you on the trading floor even more.