The Silver Flame is my favorite broadhead. I was able to test all 3 2blade broadheads I wanted to try this year in Oklahoma. My impressions were that the STOS left a great wound channel, but I wasn't overly impressed with the penetration, it seemed to me that that particular arrow could've passed through, but something weird might've happened. The tip bent even though nothing very heavy was hit. The Eclipse penetrated exceptionally both times I used it on a deer, but both wound channels were poor (strange I know). The Silver Flame happened to dead center a doe's spine at a slightly quartering-to angle. It severed a rib on impact and continued on to sever the spine (it hit it dead on, cutting just about the largest amount of bone possible at that angle). The head cleared the vertebrae and penetrated a few inches further, nearly exiting the offside. This was with a 52#@30" DAS recurve with arrows weighing only 435 grains. Now I know this isn't scientific, but I'm confident at this point that the Silver Flame is the broadhead I want on the end of my arrows from now on.
I found something the next morning that was even more surprising. After pulling the broadhead back out, I cleaned the arrow off and prepared to resharpen it. Out of curiosity I attempted to shave my arm with it, and found that it still popped hair off my arm effortlessly!
They are an excellent broadhead well worth the price.
Craig