I think your doing the right thing trying to eliminate a problem before it becomes a problem with selecting the exact shot you want to make.
It sounds like your shot isn't going to be too far so I'd opt with drilling the heart right outand would go forthe high shoulder/spine shot 2nd.

But now address the other foreseen problem and that is the neighbors and the possible trespassing issue.

I would make contact with the neighbors ASAP to clarify your intentions. Let them know you are going to be hunting over there and find out if anyone is expected over there on their property, youdon't want to shoot at/towards anyone and youdon't want stuff flying in your direction either.

Maybe nobody is supposed tohunt there and the signs are up because of trespassers in the past. Let them know you'll report any trespassers to them if they would like. Ask if you can retreive your downed game from their property right off or if they would like you to check in with them first. Maybe as simple as a phone call. But IMO communication is the key and can sometimes open doors you never even knew were there.

Maybe the neighbors aren't "the hunting type" but enjoy venison. If you should retreive from their property (or even not) turning them on to afresh, roast wrapped in bacon may pay "dividends" later if you know what I mean. You might even go over and introduce yourself as I mentioned earlier and they may think they need a few deer taken off their land (thin the herd).

Good luck and be safe.

Matt has good ideas, and I would listen to them.

I would like to add that while I personally don't like shoulder shots due to a lot of meat damage, every one I have seen with a slug drops them on the spot.

With a gun, I like the scapula (similar to a high shoulder) shot. There was an excellent article in Deer & Deer Hunting last fall, which talked about the shot. Of course, this shot only works well with a gun. If you hit a deer where the white dot is shown in the picture linked below, it won't go ANYWHERE. A slight miss high hits the spine, and a low shot hits the top of the vitals. I made a shot like this on the last deer I killed with a rifle and he dropped like a sack of mud.

I had the same situation when I was still living in PA. We had a deer cross into posted land and we were told by the land owner that we could not retrieve it. I could honestly see the deer from his fence line. To fix this, I called a personal friend who was a conservation officer and he, with little resistance, talked the land owner into allowing me to retrieve the deer. The reg read "Every attempt MUST be made to retrieve fallen game." after the WCO read this to the land owner, he was very compliant. Just a suggestion.

spur0701.....smokepoles are a pain.....powerbelts....speedloaders for follow up shot...fan to clear the air to know which way it went.......neckshots are a plus...hope this helps..also get to know the property owners...feed em some venison......be sociable before the season starts....build relationships for next season