Definitely the opener if you scout first.I know there is lots of pressure,but if you can find a bomber buck scouting,your best chance at that buck is opening day.Once he figures out season is on,he'll timber up and go nocturnal.Like rugarm77 said though-if you archery hunt,many more of the roads will still be open giving you better access.If you have limited time,I would think hunting later would be a better option.After the opener onslaught is over with,bucks will revert to pre-opener patterns when pressure lifts.By far the most pressure will be the opening few days.Finding a buck that hasn't been pressured on the 2nd day will be tough.Hunting later will also be a more quality hunt,due to lots less people in the high country.I would recommend scouting a few times during the summer to find a buck you want to kill.If you find him,go on the opener.If you can't find one,go later.If you have the time,do both.