I find that when knitting w/circs that if I pull the 2nd stitch in the round a little tighter it just about does away with the laddering. However, how fat the cable on the circs is will affect whether you need to or how much to tighten. You might experiment a bit and see if it helps. If my first stitch on the new needle is a purl, for some reason that helps with the laddering problem for me. HTH
Denial, anger, bargaining, depression, acceptance...the five stages of frogging.