Does anyone know if the three versions of the MXR Phase 90 are true bypass? I am currently using the EVH version (the one with the script button and blue LED) and I believe its true bypass (there doesn't appear to be any loss of tone when the pedal is on or off). I have just purchased a block logo Phase 90 (the orange re-issue, am now waiting for it to arrive) and I don't know if this is true bypass? The original script logo Phase 90 (battery only) apparently isn't true bypass. If anyone can confirm the true bypass ability of the three versions, that would be great, as it may save me having to purchase a loop for my pedalboard as well.