I've been using Rage 2 blades since they came out, as have both my brothers. We've had a multitude of different shots between all of us, and we've been happy with the results every time.
My brother shot a deer this season that he thinks he hit in the shoulder blade. Like you, we also did not recover that deer. However, I don't personally believe its due to broadhead performance. I think that's just such a hard place to get a shot and recover the deer, I don't think theres a good recovery chance no matter what you use. It's high and usually forward, so there's a good chance of only get one lung, or no vitals at all, if you hit the shoulder blade. I think that's the primary issue, not so much the broadhead performance.
I shot a buck this year with the most quartering away angle I've ever taken on a deer. Some might argue it was more of an angle than I should have taken (I might argue that), however, I did what I did. The arrow went in through the intestines and up to the off-side shoulder. I did not get an exit, but I buried the arrow up to the vanes with no deflection of any kind. I've had other quartering shots, not as tight of an angle as that one, but have never had an issue with deflection.
On three occasions that I can recall, I have broken a shoulder or leg bone with my Rages. The first buck the shot was broadside. The arrow went in the ribs and hit right on the off-side shoulder. The shoulder bone was completely shattered, the arrow worked its way back out as the deer ran away, and the deer fell in sight of my stand. The tip of the broadhead needed to be replaced, which they are replacable, but otherwise the blade was in great shape and did the job. That was a 20 yard shot.
On another occasion I had a broadside shot. The arrow went it the chest, but was a little low. It came out just below the off-side shoulder, center punching the off-side front leg. The Rage broke the front leg bone completely in half, and the arrow was stuck half-way through the front leg as he ran off. Though low, that shot hit the vitals as well and I recovered the deer within sight of the stand. That Rage was not damaged in any way, just needed to be resharpened, as I do with any broad head after I use it. that was a 25 yard shot.
On my third occasion, I shot a deer broadside, but something whacky happened. I still don't know what, I'm assuming I just torqued the bow or something, but I made a gut shot. The arrow went in the gut area on the entrance, then came out and center-punched the upper part of the rear leg on the exit. The rear leg bone was completely broken in half. I could see that from stand as I watched the deer run away. I had to let him sit for a few hours, but I also recovered that deer, so I was able to have a good look at how much damage that broad head did. That broad head needed a little sharpening, but it wasn't broken, chipped, or bent. Once sharpened, you would never know I used it. that was a 25 yard shot.
That's my experience. I have shot 10 to 12 deer with Rage 2 blades, and am yet to have any kind of malfunction. In fact, I have had a couple of deer that I feel very confident that I would not have recovered had I not been using the Rage. Here's an example: I shot at a deer at 33 yards. Just as I released the arrow, she turned to go back the other way. The arrow reached her just as she was turning. It sliced right along her whole side, starting at her hip and going almost to her shoulder, slicing her whole side open. She ran off into the woods, leaving a massive blood trail and guts hanging on the brush. The arrow didn't deflect, I found it right where it should have been, stuck in the ground. Without the Rage's extra big cutting diameter, I'm not sure what would have happened with that shot. All in all, I've had great luck. I was always a fixed blade guy, and wouldn't use many other models of expandables, but I like the Rage.