1. On my chest, but you know, I've never paid attention to where exactly. Most of the vids I've been looking at say on or below the nipple area. It's probably something I have to get used to by practicing more often.
2. Not on my heels, that's for sure. I didn't know about that until this past weekend. I'm usually grasping the bar during the entire movement.
3. I think they're flared. I've never quite gotten the whole arms 45-degree angle thing.
This vid -- http://www.youtube.com/watch?v=vUcjOIZc80c -- mentions something about an elbow correction. I'm not really clear on it. Just saw it again ... am I rotating them slightly outwards and do I keep them rotated for the duration of the set?
Do people usually bench with their feet on the bench or on the floor?