Like already said.
Same schematic different value components is all.
But yes,they sound way different yet still like a big muff.

I actually done a schematic that shows you where the differences are between the 3003-A NYC muff and the LBM ,the differences are a total of 11 components and different transistor types having different values.

But considering the LBM is a current production pedal i wont give the schem away.
I will give the out of production 3003-A (2000 model no longer made) schem out but not the current2008 3003-C one.

Put it this way, they both sound different enough to warrant owning both!

BTW, this belongs in the help forum.