Ok, thanks for the info!
Kill dry is off on both units. I am using DSP+FX bypass on both as well.
So if I understand you correctly, if H9 #1 is using an effect set to pre, it will go to the front of the amp regardless of how the second H9 is set? Meaning, if it is using a post effect then THAT will go to the loop while the other goes to the front?
So my only problem arises if I happen to bypass both units simultaneously? Is there any way to work around that?