You should be shooting at least 5 grains/lb. At 60 lbs. that is 300 grains. Depending on what your shooting these arrows for, your setup will be different. I'll assume a hunting setup. You should be using a 100 grain point, 29" Carbon Express 250 (or Equal). 4" vanes for hunting. This setup will put you just over 300 grains.

If you want to gain a few fps. Remember that the more you put on your bow string, the slower it will be. The only thing you need is a peep. You'll never get a second shot. If you do, good for you.

I don't think you'll ever get the fps that Mathews advertises. The are about 20 fps high on every bow they make. I have an Outback as well, sure it's quit, but it's slow as hell too. Good enough for hunting Whitetail, but slow. Even their new Apex at 29" draw is only 280 - 285 fps. For 1300 bones that's false advertising.

Good luck!