I experimented a lot last night with it..  I changed it between all the loops and that didn't make any difference.  It seems that it occurs on the "Digital Delay" setting.  More specifically when there is one delay (Delay A: 1/8*   Delay B: no delay) and the mix is still A:10 B:10.  I noticed it from bypass to active (without using the loopstrip).  When I would put it to A:10 B:0, it lowered the volume boost.  Is this a normal functionality?  If I only have one delay, should it set to be 100% that delay?  It helps if I keep the Wet/Dry Mix lower as well.  Is this just how the Digital setting works?