The catalogue I just received in the mail says a 25-29" draw works well for the PSA, not the PMA. The PMA states 24-28" for 58" limbs.
I own two 60" widows, an SA and an HS. My MA with it's longer riser is a 62" bow. I draw exactly 28" with the widow grips. I've shot MAs with 60" limbs and they work fine, but the 62"er is just so much smoother for me.
If I was going to order a new widow and didn't want the limbs to be longer than 58", I'd stay with the SA or PCH. That's just me though.