I've (literally) just completed my first BYOC build, the compressor. I've tweaked the trim pot and found what appeared to be the sweet spot. The problem, however, is that even with the volume and sustain pots maxed out the pedal is struggling to reach unity gain (ie. the volume of the amp when the pedal is off). If you back off the volume and sustain pots, the volume drops very quickly.
So, on the one hand the pedal obviously works, the LED comes on, and compression is applied....but on the other hand, it's not really useable as the volume drop when turning the pedal on is quite noticable.
Can anyone take a stab at what might be the problem? I can post pics if needed.
You've more than likely got a short somewhere that's sapping your signal. Post pics.