Learning the spey cast on a Switch rod....
So, is this just a bad idea? I like the concept of a switch rod moreso than a spey rod for whatever reason. I'll mainly be using it with a compact head for swinging flies on everything from larger rivers like the Clackamas and Sandy, as well as some tighter coastal rivers where you barely have ten feet behind you for a backcast. That's probably the most attractive part about a shorter rod.
I'll be fishing it in conjunction with a 8-weight one hander that'll be used mainly for nymphing or really small water.
Is it much harder to learn d-loops and snap-t's, stuff like that, on a switch rod? Will a switch rod cast significantly shorter than a spey rod? What about fly sizes? What are the limitations?