As a follow up, I watched the video and it is very good, but it addresses all cables except the throttle cables. The problem I'm having is that I cannot use the full adjustment capabilities of the Rox Risers without the throttle cable binding and freezing the cables at whatever engine speed I am at when the bars are full right. That could present a problem in a tight spot.
I have contacted Tim at Metric Magic as he is very good at finding cables and I expect to hear from him in the next few days. A plus 3" would solve it for e.
Believe me, I've tried routing, changing handlebar angle, etc., and there is nothing I can find to do to resolve the problem without slightly longer throttle cables.
If anyone else is experiencing the problem I'd be glad to let you know what I find out about cable plus sizes.