you would be shocked at what some fish will hit
I have caught fish on flies not designed for their species lots of times. Like fishing for cutties i like to start off with a coho fly actually LOL then move on to cutty flies but i dont fish for them much so... and YES to your question. springs will hit rolled muddlers no problem, in all actuality springs will normally hit anything thats in their face
there really isnt much skill to catching them besides getting and keeping your fly down in the zone, the tricky part is landing them
MikeH - go to a look in the coho fly fishing thread, i posted a picture of my beadhead rolled muddler. this is the fly i have nailed loads of springs on (mostly jacks). you can tie them like they are and just cut the deer hair off more on the river or you can trim it back lots at home. I trim them at home now but fully dressed ones will work really well sometimes as well