Sorry to read about this!! I really feel for you and know what you're going through. I had a similar situation about 20 years ago. Had a dandy 130-140 class buck come in at high noon and put his nose right up to the scent wick that was 10 yards in front of my climber. I was about 18 feet up a straight red oak. It was November 8th I'll never forget it. The shot looked great but kinda high. I switched from Muzzy 100's that year to Rocket Aerohead's that were only 7/8" diameter as they were supposed to fly like your field tips but were still fixed broadheads. This was right at the transition where mechanicals were just starting to become popular but I still didn't trust them but had some broadhead flight problems so I thought these would be a great compromise. Wish I would have stayed with the Muzzy's. The arrow went right through, the buck whirled and headed back down the ridge from whence he came. I could see the arrow laying there, I waited an hour anyway and I didn't hear a crash and it was a super dry, warm and windy day. Tracked him for 75 yards or so, never really great blood but some. Then it dried up. The arrow had decent blood on it but no bubbles. I started doing ever increasing arcs and not blood. Spent the rest of the afternoon trying to find blood, looked in nearby swales and wet drainages.... nothing. That evening I called Deer Search and we went out the next morning. That dog never got on any hot sign and the tracker really spent a lot of time. He said the weather is so dry and windy its hard for the dog too. Never found that great buck and it was a whopper for here. We ruled it out to a No Man's Land hit!!! Those really suck. I was using a very fast Hoyt Viper back then it only had a 5" brace height and like I said, he was still managed to drop just enough and with that small diameter broadhead.... .recipe for a frustrating couple of days. I hope you get another chance at him. I never saw my buck again.