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Cool, Thanks. I'll give it go once I can get around to building it.

Tap board

Under the chip

Full inside shot

Ok, here we go... An official tap tempo

I saw what looked like a prototype online called BP + Trails. Does anyone have any ideas on how to enable bypass delay trails with the Blueprint or Mobius?

A Boss LS-2 Line Selector might do the trick as well

Anybody know how to do the tap tempo mod for the Blueprint?

Thanks but I was trying to stay away from cutting an already boosted signal.

Thanks for that. I looked it up and I think I understand what's happening. Correct me if I am wrong, but it sounds like, when summing, you use the opamp to boost to make up for any loss and then you attenuate the boosted signal as needed. So the knob on the return of the LS-2 is working like a mixer fader. That sounds easy enough to do.

I guess where I confused myself is I'm also trying to do a pre type control with real boost/cut before the send. Is that possible or even something that is nirmally done? I have the pre boost worked out by putting a 10k pot in the negative feedback loop but it only starts at unity. Its sounds pretty good that way but would like the flexibility of cutting if ever needed. I understand the pot in the loop method may not be the best way for various reasons. Am I thinking of it all wrong? Is there a better way to do the pre?

I am trying to recreate my Boss LS-2 line selector in it's A+B mix mode which is basically a 2 channel parallel looper. It has a knob on each return. I have not examined the circuit, but it appears that noon is unity, turn to the left and volume gets cut, turn to the right and gain is increased. The knobs are labeled "Level" and the extreme positions are labeled -infinite and +20. I assume it's using opamps for the boost.

Can anybody point me in the right direction on how to do that? Or is that what it's even happening?

No prob... I might be interested in that extra Yodeler. I'll send you a PM.

I thought I remembered seeing a picture or video of the inside of a VFE mega pedal somewhere in the vast expanse of the internet. I could be wrong but I think I recall the bottom foot switch section being basically empty except for the switch and wires coming down from the top part. I'll try to recall where it was.

Yep... there is zero chance that is a pic of the inside of a VFE mega pedal. It's from the VFE Facebook page... #notaVFEpedal

I'd be very interested to see a circuit diagram for that.

Are those prepopulated smd chips? Wow, what's the deal with that?