I was referring to the samples and such.
However, you can run a wav rendering file through Audition to see where it clips. You can then adjust some settings in the file so that your default player settings don't clip it.
Yeah, mod files are a bitch to balance, but using more than just you ears to try to find distortion, you can pretty easily locate problem areas (sometimes you have 1 bar that just happens to have 1 more sound layered over or something that causes the sound to clip there).