Best way to dial down the brightness of Silicon fuzz Face?

[Burstbucker]

Quite a few years ago I built waht's basically a clone of a Fulltone '70 Silicon Fuzz Face, with a "mid" pot just like the Fulltone.

The other night, I plugged into it again and it does sound quite decent but it could stand to be a tad less bright IMO.  What would be the best way to knock down the high end in this circuit?  I doubt that increasing the input cap would be the best way to go, would it?  I think that that will just make it even fuzzier, which isn't needed as it's already pretty fuzzed out.

Would I get the best results in placing a small cap between on the output and ground?  Would that dump some of the high frequencies?

I'm not an electronics wiz but I've built quite a few fuzzes and treble boosters and can follow a schematic without any problems.  I sure would like any suggestions from some of you knowledgeable folks.  Thanks!

[John Lyons]

A cap across the Collector resistor of Q2 (.01 or so) and or a cap across the base and Collector of Q1 (100pf or so) and Q2.
The cap across B and C of Q1 will help with hiss without killing too much high end. Across Q2 and the collector resistor of Q2
will be more of a tone shaper.