"If you think you caught the liver wait and the animal will bleed out. Wait at least 4 hours to take up the trail - the animal will not go anywhere if given the chance to expire. Jump him and he may go forever."

I agree. I shot a nice 8-pointer (my 1st deer with the bow) in 1998 and had a complete liver pass thru. 50# Bear Whitetail 1970's bow, 125-gr Thunderhead tipped 2117. The deer ran off...
I got down from my TS and recoved my arrow and decided to wait some time. I had read a copy of Trailing Whitetails by John Trout Jr. and his instruction in a liver shot was to wait like 6 hrs.

My brother-in-law and I decided to get right outta the woods and go get breakfast. We came back about 4 hrs later. At 25 yrds the blood trail STOPPED. I starting making increasingly-bigger and bigger circles looking for the deer. After a little while my brother-in-law said "You have a million to one chance of finding this deer" and headed off to do some farm chores. I however never gave up.

Forgetting where I thought the deer decided to run and just keeping with the circles I stopped to overlook the large field and scracthed my head confused on why I could find this deer! In less than a minute I turned my head and spotted the buck laying on his side as if asleep in a water drainage culvert about 10 inches or so deep. There he was!

Learned a lot from that deer. Such as:

*Never pressure a deer.If in doubt - WAIT! Like you said "He isn't going anywhere" if he's severely wounded.

*Get out of the area! Too many over-eager trackers spoil their own success by smelling up the area more or destroying what blood trail or evidence there IS. LEAVE! Slip out as quietly as possible in a way to stay away from the direction where the deer ran off into.

*Be PATIENT! Your mind is going to play games on your during that time. If you planned on 4 hrs - STAY OUT for 4 hrs (unless rain has come in and weill ruin any blood trals).

*Read that book! Its GREAT!