If you can get a few buddies to help, it would definetly make for a better track. Just start over from the point of impact, and follow the blood trail as closesly as possible. Try to look where he might have been back-tracking and veered off. If you can't find anything and the P is the last spot you can track, then start making some loops and check both pond location's. A hit deer will travel to water immediately.

Make sure and stay on the blood trail as much as possible without veering off and guessing the direction. But if you can't pick up the track from the P where he hit his own path, then you will have to make the circle grid to make an attempt to find him. If you have a good tracking dog, that would also help in the search...but if your dog is one that just run's deer then it probaly won't be worth bringing him into the area.

Please keep us updated on the track and how everything turn's out. A photo with you and the buck would be a good conclusion to this post.