I've been using the Weather Tamer (WC) on my Allegiance for a while now WITHOUT any problems and have absolutely no problems with vane clearance. The cable groove design lets the buss cable move naturally, producing less drag and more consistency. The ROUNDED radiuses provides excellent resistance to cable wear--so I find it IMPOSSIBLE to see how this cable slide can destroy cables!!!
Added to the machined aluminum the WC now also comes in a machined delrin.