Ah, that's a bummer to hear, Cheese. I actually have a 10m roll of that stuff sitting around for the day I don't have 20 better projects to do. I have to say that the new hoses are spectacular. They're so much more flexible than my original hoses I've replaced all but my 7.5m hose.
[member=69721]badtoytrd[/member] maybe I've sent you down the wrong path with an additional nylon sheath. I know a lot of guys use cable ties (like the velcro cable organization thingies) to just hold the cord on in a few spots. That's probably a cheap, quick thing you could try out. I really think routing through the sheathing has a high probability of causing you fits.