Sold one that was 58". I have a 28" draw and there was no stack at all, very smooth bow. The only advantage that I could see with the 58" is if you actually preferred a little longer bow for stability. JMHO.
As far as a review goes: I personally thought the Mag was one of the smoothest drawing bows I've had. It had plenty of speed and was much more bow than it's diminutive size would seem to indicate. The grip was very comfortable and repeatable. Nice balance and pointability. Forgiving of my "bad" releases. I only sold mine because I'm more consistent with more riser mass and a true medium-high grip. Shooting three piece bows now.