Fastest production bow RIGHT NOW is the Bowtech BK2, only because no-one else bothers with all of that junk anymore![8D]

Speed is very easy to get, honestly it is... there are many tricks of the trade such as utilizing short brace heights, grinding down and pre-stressing limbs, grinding the cams down to nothing and shortening their radius so they are lighter and come around faster, polishing axels, running bearings for less friction, running lesser-strand strings,(5fps per loop!) and of course creating a nasty draw-force curve to combine with any and all of the aforementioned. Heck, we regularly shot bows back in the 80's and early 90's with over 8" brace heights, 80+lbs and light arrows over 400fps and even hitting 425fps in local "fastest bow contests"---now they're just utilizing the same concepts on shorter brace bows with lighter poundage and heavier arrows, but it is still the same concepts only with newer materials--really is no biggie, anyone with a brain can build a fast bow IMHO. I still have a "breathed on" 8.25" 38" ATA bow from the mid 90's that will shoot over 340fps all day long at close to IBO legal. But I shoot a bow that does 285-290 instead because it handles much better even tho it only has a 7.25" brace. Hmmmm.

Now---

To build a fast bow that is quiet--- That takes a little more doing, but basically if you have all of the cards in place it is not all that difficult either--still has to have a nasty draw force curve and lower brace, still have to polish axles and prestress limbs and use the "tricks", and you have to also incorporate parallel design. That's pretty much it tho, again, no real biggie. Bowtech is slowly coming around to the realization with their Liberty (best selling bow for them this year) in that you do NOT need the speed---guys will buy a smooth, quiet bow that puts the arrow where it belongs hands-down over a speed bow, and that's the bottom line. Just like the fact that most of us drive trucks, tho a few may still have a vette or shelby in the garage (but not all that many) and they only drive them on the weekends...same thing here with the speed bows. Good to cover the niche if you can, but not totally necessary because manufacturers will sell many bows regardless.

Speed will continue to go up over time anyway in the industry due to newer, stronger, lighter materials with less friction coefficients, and I figure why shoot things that are not comfortable or give up handling and shootability just for a few more fps by having to use shorter brace heights or whatever?? Doesn't make sense to me anymore even tho I used to be one of those speed junkies too 20 years ago! JMHO, Pinwheel 12