Hi, I do the same thing, sort of. I have a splitter off of the guitar going to the RealTone Cable, and to the cord to my amp. In the Rocksmith 2014 Options menu, you can use the mixer to turn down your guitar tone (Guitar 1). If you do this though, only turn it down to 1, not 0; otherwise RS will constantly "advise" you about changing it as it will assume (correctly) that you cannot hear your guitar through RS. Alternately, if you want to have a clean tone in RS and another through your amp, you can customize a tone and assign it to the tone stick... however, you'll have to manually activate that tone (Press a key on your keyboard) every time you start a song.
