Identifing Phase Inversion

[skypn]

I have been working on a version of the Bass Fuss, adding a blender so I can mix in some dry. I read that Phase Inversion *could* cause some problems.
Playing by ear, its sounds great at either all fuzz, or all dry. It *seems* to drop a tad in the middle. Still sounds good, just a little less umph. Then again, I could just be looking for trouble.
How can one tell? Would the inversion be very noticeable to the ear?
I do not have access to an oscilloscope, and I did, I wouldn't have a clue what to do with it.
TIA

[madbean]

The bazz fuss is a common emitter amplifier and so the output is 180 from the input. If you want to have a clean blend the easiest way to do it is have a second CE amplifier with less gain (cleaner output) in parallel with the bazz fuss then blend the two outputs with a pot right before the output volume.

There might already be a design worked out for this.

[skypn]

Thank You