Flip a coin.
Either should work @ 28". Maximas spine @.404 @ 28 and 3-39's spine @ 440 @ 28. Maximas probably will have the better FOC w/ the weight forward design. But the ACC's will be a better spine @ 60lbs. You could cut the CX's to 27 or 27 1/2 and get a little stiffer arrow. Hope this helps.
Either should work @ 28". Maximas spine @.404 @ 28 and 3-39's spine @ 440 @ 28. Maximas probably will have the better FOC w/ the weight forward design. But the ACC's will be a better spine @ 60lbs. You could cut the CX's to 27 or 27 1/2 and get a little stiffer arrow. Hope this helps.