Cupcake trimpot trouble

[AntKnee]

My Cupcake trimpot is acting weird, not sure if this is normal... It is either loud and distorted or if it is adjusted so there is no distortion, there is a tremolo like effect to the tone. That may be there when it is loud, too, but is covered up by the distortion. It seems like a lot of the low range of the trimpot has no effect at all, it gets too loud and distorts very quick.

IC voltages:
1  4.79
2  4.83
3  3.98
4  0.01
5  0.02
6  8.16
7  8.17
8  8.80

Also, I used a matched pair of 2N5457, if that makes any difference.
I did not have a 4M7 resistor, but substitued a 3M9 + 750K resistor.
I did not have a 2K4 resistor, but substituted a 1k5 + 1k resistor.

[AntKnee]

Anyone have any thoughts on how a compressor may sound like an overdrive with tremolo?

[midwayfair]

what are the voltages on the FETs?

Probe the cathode of D1 while playing something and tell me if you get a DC reading.

[AntKnee]

Sorry, should have done that already.
Q1: D 0.01, S 1.45, G 1.30
Q2: D 1.45, S 2.42, G 8.78

With the trimpot at full, on D1 cathode I measure about 0.40 if I bang on it.

[midwayfair]

Sorry, should have done that already.
Q1: D 0.01, S 1.45, G 1.30
Q2: D 1.45, S 2.42, G 8.78

With the trimpot at full, on D1 cathode I measure about 0.40 if I bang on it.

Check your pinouts. You shouldn't have 0V on any of the drains.

[AntKnee]

Check your pinouts. You shouldn't have 0V on any of the drains.

Rechecked them all, have new numbers:
Q1 G=0.30  S=3.68  D=2.26
Q2 G=3.68 S= 4.66  D=8.78

[AntKnee]

Should I try changing out my 2n5457's?

[copachino]

Should I try changing out my 2n5457's?

IMO Q1 have too low voltage you should try anther fet in there

[AntKnee]

Tried swapping out the fets, but no change.
The pedal is either clean with "vibrato" or distorted without vibrato. This is the only way I can decribe the sound. It is wavy, or tremolo like. Maybe its a phase thing?

[midwayfair]

Post clear pictures of both sides of the PCB.

The tremolo sound is probably ripple, from the envelope not holding charge properly. It's normal to have a small amount of ripple on the very tail end of a long note in a compressor with a short decay like this, but not like you're describing.