Rich,
I am not going to sit here and tell you one way is better than the other, everyone has their own methods. I trust what Scott at SWB tells me, he explained why some methods work and why some don't. I got on the topic of pull-pull's while discussing a system for my 50% CAP. Basically I needed a system to gang four servo's together. Knowing that the ideal cable orientation is a rectangle I can figure out the width of the rudder horn and servo arms I need to maintain the best geometry. I'm working with a fiberglass fuse so I'll just cut a long narrow slot out of the side to run the wire. If the slot is narrow enough it should barely be noticeable.