Originally Posted by
grumpus
That might reduce rub but it won't easily prevent it altogether.
That depends very much on whether the cables go under or over the bottom bracket. While most modern bikes go under, many older bikes have over-bracket braze-ons (and many more used clamp-on guides that put the cable on top).
If one uses the standard chrome side of the tube stops instead of that aluminum monstrosity it serves both types of routing okay - but you may have an issue with bottle cages. It's easy enough to figure out, though.