I'm a little behind in this thread but let me preface this by saying I'll never be the hunter Dan is. The guy is a hardcore, deer killing machine hunting some of the nastiest stuff I don't even want to head into.
That said, I think any of us with a couple years of saddle experience could have setup and made the shot in the first tree just exactly as Dan had. Sitting knees to the tree we would have exactly the same profile to the deer at its exit as Dan straddling the tree. Yes, we would have had to move our bow over the tether but Dan even admitted he would have had to move his bow to the other side of the tree to make a shot had the deer gone that way. No difference in my mind. With my platform and a leaning away tree the offside shot would be done exactly as Dan did it. I would have stood full weight on the platform and leaned against the tree.
Second tree. Did I say Dan is the man? I wouldn't consider setting up in that tree for a 3+ hour sit, tree stand or saddle. Severe leaner and a need to stand for the whole time. After all, it doesn't matter if you're sitting in a stand or saddle on a small tree on the edge like that. You're gonna look like a transformer on a telephone pole. That said, if I absolutely had to I think I could set up on a lean in that tree with the tree between me and bedding and be almost as small in profile from behind the tree. . . . again, not that I personally would even consider it. I spent enough time in uncomfortable positions in trees before I ever even owned a treestand.
Third tree . . . If Dan has to cut a spot in that tree for his stand, why couldn't I cut exactly the same spot and hang in there. The shot is the classic 6 o'clock drop shot and easy to do from the saddle. I don't need any more room to make that shot from the saddle than I would from a stand.
For the record, I'm NOT a believer that the saddle offers me ANY tree. I also don't believe that a stand offers me ANY tree. I do believe however that, at least for me, the saddle gives me more opportunities than a stand. Better still, I can pack all my "metal" stuff inside of my pack for the walk in so that I don't experience any extraneous clanks or pings from brush on my gear walking in. Frankly, that is the biggest single reason to hunt from a saddle that I have found.