Thanks. I'll do this, I'm sure that it is the main factor. I also found out that TC Electronics has an update 2.04 for the G-Force that will help for program changing (block bypass mode updates). Can't wait to post my findings here, you all have been real helpful. Any thoughts on my issue with my question as it pertains to getting a paralel 'clean' tone when using the fulltone (loop5)?
Dave

Well I found that the noise was caused by the cheap power chain I was using for the pedal fx. Problem solved. Also I have to remove the front-end (fulltone fd2) pedal and really use it before the rg-16. There's a staggering loss of tone doing it in the way I showed in my diagram. I will try throwing an A/B box in before that to solve it though. The rig with the overdrive on sounds fine, but there's a big loss on the mesa's bottom-end and punch when go from the gtr to the rg-16's inputs both with, and without the use of the buffer cuircut. Like I said, I'll prob just throw an ab box selecting between the rg16 going into the front of the amp and the guitar straight onto the front of the amp. This is something that I can just leave on the floor near the drummer for switching between songs that I need the od on. I'll try that and post my findings first because I really need to get as much fx off the floor and controlled by the rg16 as possible.
-goat