RE: conviece me which brand to buy
I believe he means that faster bows tend to be a bit trickier to shoot and tune. In order to get the speed out of them they become less forgiving. Everything is a give and take situation. I am sure if they could get a bow that would shoot fast but not use too light of an arrow and be easier to shoot they would go for it. The faster you can get the arrow out of the bow and to the target the better. As long as you don't sacrifice anything to do it. A fast bow means nothing if you can't shoot it well or tune it.
I would think you would want a combination of decent speed and arrow weight to counter act the wind. You would not want a real fast but light arrow, or a real slow but heavy arrow. Both would be a dissadvantage with cross wind at longer ranges. I also believe FITA is limited to 60 lbs of draw weight as well. That is why you don't see the same speeds you would see with 3-D. And Olympic recurve archery I'm sure is even slower yet.
It sort of the same way with firearms. I have a .17HMR that is VERY accurate out to beyond 100 yards. However with the tiny 17 grn bullet if the wind is blowing slightly it really messes up the shot at longer distances. That is why most long range marksmen prefere a heavier .308 bullet. It bucks the wind better and has a better BLC because of the length. They just have to compensate for the trajectory is all. ( I am talking 1000 meters and beyond type of stuff)
I have a paper written Matt Cleland about FITA archery if anyone is interested in reading. It was on the internet, but the link is down. I have it saved in Word though. It is very interesting and he makes some good points. He is a local archer that holds several state and national titles and records. He was also on the United States archery team for several years.
Paul