Well, I'm not an experienced shooter, but I have a 58" SXT, 48#@28" with the carbon/foam limbs. Definitely a shooter and very smooth. Bill Dunn told me when I was ordering that the carbon/foam design he has will give basically about 2-3 more #'s of energy with the lesser draw weight. I have no way to prove/disprove that, so I'm going with what he said. He promotes them as the way to go, good enough for me. No doubt lots of opinions around that though.
You've got a pretty good looking "stable" of bows there, Juan.