The DMM w/H is not true bypass, so it is always affecting the signal chain even when the effect is disengaged. The fact that it is stereo makes it essentially impossible to modify for true bypass. Some people have reported a volume DROP, and some people have reported a volume INCREASE. Some people have reported a change in the tone as well. Some people have noticed that the volume and/or tonal change is affected by the position of the DMM w/H in the chain, so the issue most likely has to do with buffering. I can’t find any stats on the input/output impedances, so I can’t give any recommendations other than to move things around and see what works best for you. If you don’t like what it does when you put it in the chain where you really want the delay, then you might be able to fix the problem with a dedicated buffer or a buffered bypass pedal right in front of or right after the DMM w/H. If this is too much of a hassle, or it doesn’t fix the problem, this might not be a good pedal for you.

Some sort of buffered pedal between the Tone Wicker and the Hazarai will solve the problem. The Metal Muff between the Big Muff and Hazarai should do the trick because the Metal Muff is buffered both in bypass and in effect mode.