Yep,
I make some of my purer flyfishing partners puke when I tote my 11 1/2 foot two hander along with the setup you are talking about. I like the feel of fighting a fish on the flyrod using a single action reel. I almost usethis setup exclusively on the small brushy rivers around my home. I've overlined a stiff 8/9 with an 11 wt saltwater taper floater. Use nothing heavier thatn a 1/16 oz head (great products from First Cast and Rainbow Jigs) and the second smallest cork "strike indicator" (the natural cork with the orange platic insert). It is a bit akward at first, but roll casting to, and tight lining slots that are unfishable with other methods are now possible. I also tie up dumbell eyed flys on downturned eye 3X or 4X long steamer hooks that work the same as a jig. I had to play around with the line weight for a while before I found the right weight and taper to move this heavy setup. It is deadly and at times outfishes many other methods. I also cut down the butt section of my rod about three inches since I was having trouble with the line wrapping around it when making casts.
I still enjoy swinging flies in the right conditions, but where I fish it is virtually impossible in many situations where I knew fish held. I guess its more a techinique that evolved out of the love for using fly rods and combining that with the lust for higher fish production.