No I haven't. I'm very skeptical of manufacturers claims, and glowing reports from folks I don't know, especially when I'm getting ready to dump some big bucks. I do listen to what others have to say, try to distill it down, then look at the materials and construction before I make a decision. In the case of the BF vs the Extremes, I noticed that one has synthetic foam, and the other foam. One has carbon lams, and the other cross weave carbon lams. Now if I were Sid, or Bob Morrison, I could figure out which was better, but I'm not. I don't buy into a lot of technical info either, because quite frankly, I'm not an Olympic archer, just an old man that likes to shoot 3D, so buying the BEST, whatever that be, doesn't really matter to me. What I look for, is quality construction, smooth draw, lack of stack, and stability of the limbs at the shot. Lastly, I want a fast limb, because I miss less with a faster limb.
Now, what gave me the idea to buy these limbs, is that they are at the top of what I want to spend for a limb. I can well afford more, but the most expensive isn't necessarily the best, and MIGHT be a waste of money. I've owned all of the flutes, and two sets of Winex. If the Winex didn't have all the graphics, I'd buy them in a heartbeat, and keep them. They have all the qualities that I look for, but I'm not wanting to advertise to the world what they are. I like flat black or wood grain. Don't like to paint limbs either, as you have to constantly repair scratches in the paint. I have owned other limb brands that were good, but didn't have the speed that I wanted.
I really took a hard look at the BF, but decided that I would gamble on the Extremes and save the $230 or so extra. I really think, and hope that I made the right decision. If the Extremes meet all my criteria, then I'll keep them. Otherwise, they will be on the trading blanket in short order. As I said in my first post, everyone has their own priorities, and mine may be different than others, but I've owned over a hundred bows, and lots of limbs in all my years of shooting. Therefore I know what works best for ME. However YOUR mileage may vary! Laughing here.
John