MARSHALL: Blues Driver / Boss Discrete Opamp

If you've read any recent posts, you may have noticed that I'm experimenting with discrete opamps - specifically replacing standard opamps with simplified discrete opamps - I've only played with the Joe Davisson diode compression opamp so far (with some success).

While I was checking out DIY Stompboxes, I saw Rob Strand was experimenting with the Boss discrete opamp that's used in the Blues Driver.  I've occasionally looked at it but have never gotten around to playing with it.  

Anyway...  it appears to work as a drop-in, and I thought a Blues Driver / Blues Breaker hybrid might be fun.  They are totally different circuits by the way - similar in name only.

More to follow on the Boss discrete opamp.  Feel like I need to spend some time playing with this and the Blues Driver.  I have an interesting idea in mind for the Blues Driver; I'll post it if it's successful.  

MARSHALL BLUES BREAKER X BOSS BLUES DRIVER DISCRETE OPAMP

It looks like a Blues Breaker on LTspice.  But I'm always a little suspicious of anything using JFETS on spice as they're notoriously variable beasts in real life.

BOSS BLUES DRIVER SCHEMATIC - OPAMP MARKED

Here's the Blues Driver schematic, with the discrete opamp marked. A good analysis can be found here if you are interested in further reading.