Appreciate the guidance/constructive feedback from everyone.
There is a nearby creek, so if we can't find any sign at our last spot we will certainly head down there. We'll have a few ice packed coolers waiting in the cars so hopefully if we find him we'll be able to salvage something.
We'll certainly be taking some important lessons from the experience and will also have some questions to chew on in preparation for the fall season. As for the time of day of the shot, I don't necessarily disagree with Jagermeister that we should have allowed for more time. That being said, if we only hunted at times when we would be guaranteed to have a full day to track and recover, our available hunting opportunities would be cut by like 50%. We did have 3.5+ hours of daylight left, and the shot was well under 100 yards, so my personal feeling is it was not an irresponsible choice to shoot. I'm open to other opinions on that though.
I think I will continue to aim vitals on all animals, but we did discuss the pros/cons of shooting to "anchor" a bear, specifically if hunting near thick brush (so a head/neck shot). Curious if others have thoughts on that?
Again, I appreciate the help from all. Will post an update when I can.