When I use my ST in front of the amp, in this case a 65 vibrochamp I get a great tone, no volume drop or a decent boost depending on how I have the internal trimmer set. However... When I put the ST last in my effects loop of my amp I get volume drop. Here's the rig rundown Guitar>tuner>Clyde wah>MDV2>VHT Pittbull UL Pittbull serial loop>Strymon Orbit>Supa Trem>Empress SD If I turn on the SupaTrem and the Empress SD, I get no volume drop. It's only when the SupaTrem is the last effect engaged in the loop that I get volume drop. Why is this, and what can I do to fix it?