Jaywalker sock sizing

Since a cast on of 52 stitches worked for the last pair of socks I made (for me for k2p2 socks), I thought that a cast on of 60 stitches would work (for my DH for Jaywalker socks -- pattern at http://magknits.com/Sept05/patterns/jaywalker.htm). I'm using Magic Stripes yarn with 2 size 3 circular needles. Well, after doing the socks down to the ankle, I decided to FROG. The socks fit me but probably wouldn't fit my DH. So, I'm going to cast on 68 stitches this next time. I already decided to do 14 rows of ribbing instead of just an inch and to do k3tog tbl instead of the dd.