21" isnt going to make your gun any more accurate than a 14-16" is. I suggest the 98. The Cyclone is kinda big and chunky, and the 98 isnt. And all guns have the same accuracy and power, it depends on the barrels and what your velocity is set to.ok i want to get a tippman gun with a 21" barrel, and other sniper mods, will their be a difference between A-5 or 98 Custom for accuracy and power . speed is not an issue. and does 98 take N2