RE: where do the big ones go
Find the bedding areas. These may be thickets, ridge tops or benches, swamps, or even small pieces of cover in more open country. Big bucks get that way by keeping a low profile. You may catch one coming to or from its bedbefore or afterfeeding, so plan a stand site along his route. Don't get too close to the bed at first. As the season goes on, adjust your stands as needed based on what you see.
Once the rut is on, hunt all day, and be on your toes in the middle of the day. Big bucks know that many hunters only hunt early and late.