The first time it happened, I thought it was just random. 2 minutes later, it happens again on another pair of brand new boots, I'm thinking design flaw.
I actually had just asked the sales guy helping me why Burton didn't put in the wire laces that are common on BOA systems. I was thinking that one nick on the exposed section of the nylon lace and boom....your day is over.
I had the same concerns about Ride's system, but was even more concerned about the plastic doo-hickey breaking at the top of the boot.
I'd gone thru 3 pairs of skate laces in my old boots because of breakage, so it was one of the few design things I knew to look for.
Too bad, because the Burton SL-9 was really comfortable. I just couldn't see a way to jury rig a fix to get thru the day if the lace broke. At least on traditional lace systems, I could take a lace from my snow boots if I had to.