Butler Tube Driver True Bypass?

I have a Butler Tube Driver v.2 (the newer reissues that he's making and offering the bias knobs on) and can't figure out if it's true bypass or not.

I found some schematics but they are for the Chandlers, older Butlers, and half show TB and half show a buffered bypass.

With an LED and a DPDT switch my gut tells me it's buffered, but I tried playing with no power, and metered the inputs/outputs with no power and it behaved like a true bypass. I tried to trace it but there are a good many twisted cables in a tight space so I couldn't get a read. Could be similar to the Rat's true bypass with LED?

Curious as I have a dedicated buffer and don't want to throw this thing before my fuzzes and such...

I have the 910 TubeWorks one I just got, have a thread about it half a page down.

That isn't bypass. Noticable change when I take it out of the chain while using my Zendrive.

But some tone suck is ok for me, the amp can rectify that for me. And my playing, if it's not sucking....

Not sure if the new ones are, Butler makes high end audio stuff, not sure if they take things into true-bypass territory, or as a piano player does he bother with such things.

I figure the originals were not true-bypass, and the new ones may not be. But I'm really just speculating.