Just got my 40C yesterday. I play a Gibson Les Paul Standard. For the life of me I can't get the sound I am looking for. I play Kiss, Motley Crue, Guns and Roses, Cinderella, you get the point. What settings should I be using? I feel like my Line 6 gives me better sound, so I know something is wrong. Been playing on Ultra Gain channel. Please, any help is appreciated.