Will your bow explode if you do this? Probably not, but it sure won't be good on it. Technically your bow should be able to handle what the IBO speed says. Whether you have to shoot lighter arrows or more poundage. It should be designed to handle the power and shock of an arrow leaving at that speed, the weight really shouldn't matter. Physically there isn't any difference between a bow at 50 lbs and 25 inches of draw shooting a really light arrow to reach IBO, or a bow set at 70 lbs and 30 inches of draw shooting a 350 grn arrow. Actually the IBO set up is producing more energy and is probably harder on the bow.

I'm I suggesting doing this? No, not at all. Especially with a bowtech at higher poundages. They are pretty agressive bows to begin with. Unless you want to get a new bow in a few years if you shoot a lot. You will hear the arguement that "Well the pro's do it." Well the pro's don't pay for thier stuff and get new stuff often.

As far as which bow should you get. I will give you the same advice I give everyone else. Get the bow that YOU like the best. Not the one that is the fastest, most popular or looks the coolest. The one that feels the best in your hands and shoots well for you. Then set it up to a comfortable draw weight and draw length and put what ever you want on it. When your done you can see how fast it is if you want, but I wouldn't fret over it too much.

Being a good archer has waaaay more to do with form and consistancy than it does speed or cool equipment, or even tuning for that matter. A really good archer can shoot just about anything well as long as the arrows are matched.

If your BIL wants to tear his bow up let him, that doesn't mean you nead to follow suit and do the same. Unless you have money to waste. I hope he at least has limb savers on it.

Paul