Yeah, tone loss is the worst. I do hope it helps with the buffer(s) and that it's not a poorly designed FX loop. It shouldn't be I can see that they do write "passive effects loop" on their webpage. I'm sure the buffers will do wonders /Lars
Yup - I use it with a 5 string bass without a problem. Of course it helps if you use 12th fret harmonics to tune, and it doesn't always get the 5th string in polytune mode, but string by string it's perfect.
Have you gotten it to work?
Can you check which preset you are on?
As Macfilipe said TP slot 3 turns the pedal into a faux volume pedal. So you can only hear your guitar when the MASH switch is engaged.
You also need to adjust the response curves of the delay knob in the knob mapping section of the TP Editor for the ratio that you want between the delay, so that the knob / pedal will keep track of your settings. You can double click the values on the knobs at the bottom to type in precise values. Hope this helps!