Expressive Solid State Amp Hack? Getting more with power supply SAG

PLEASE READ!! This is a Hack: don't risk safety or pricey gear unless you know what you're doing.
* My HoneyTone power input polarity is atypical; newer ones may be the same or differ.
* No, I don't use the Overdrive in this demo. To me 'always-on' distortion is not as expressive as power supply (p.s.) SAG distortion. SAG is indicated by the LED as 'inverse VU meter'.
* With p.s. SAG the Danelectro sounds nice directly into my 16 ohm large speaker. The hack (10 ohm load) should not stress the amp.
* Hack outputs unbalanced at 2-3 kohm over most of adjustment range and is meant to drive 50 kohm (at least 10k). Could drive a "direct box" for balanced line output.
* With no cap, I measured 3 mV dc at output - but a mylar capacitor is a good idea!
* Recorder was battery powered to keep ground loop (hum) negligible.
* No SAG using headphone jack (not enough amp loading).
* Won't SAG with fresh battery or regulated supply. [Maybe try an auto dome or turn signal lamp in series??]
* Could replace 10 ohm with reactive load [~ 8 ohm speaker with cone cut out?]