EHX Small Clone dry signal/blend mod???

[AC30Dirty]

hey guys, finally got some time to get back to modding stuff, and I gotta tell you....IT FEELS GREAT!!!! Anyway.....I have an Electro Harmonix Reissue Small Clone that I wanted to add a dry signal/blend pot to it so i can mix in the effected signal with the dry guitar signal. I can't seem to find any info anywhere. If any of you guys know how to do this and could take the time to explain it, I would greatly appreciate it!!!! Thanx