Yes, that's exactly what we are saying. Horizontal dropouts do not play well with Ti skewer rods and particularly those with external cam qr's. Most boutique and untralight skewer sets do have external cams. Here is an illustration of an external cam skewer: http://www.jensonusa.com/store/produ...Qr+Skewer.aspx Enlarge the picture and look at the end with the clamping lever.

The standard Shimano/Campy-style internal cam type with steel rods are THE way to go. Also, a steel end nut or one with a serrated steel insert should be used to be sure the nut gets a good "bite" on the dropout face. Here is a typical internal cam skewer: http://www.jensonusa.com/store/produ...0+Skewers.aspx This is what you need.