My LOOK fork has a carbon steerer and I got the bike it's on used. It had, and still does have, what looks like an oem aluminum nut in it. It doesn't look like the typical star nut, it's just a cylindrical piece of aluminum with vertical ridges on the outside. Not only does it pull out of the fork under normal headset tightening forces, but it's scaring the inside of the steerer a little in the process. I'd like to find a better solution, but the two LBSs I've taken it to have kinda discouraged the expander wedge. The better bike shop told me about some aftermarket solution where an aluminum tube is bonded into the steerer tube so that you can use any old star nut. Any suggestions?