I used the Search function extensively, and haven't found an answer to my question. I also checked through the excellent reviews and FAQ's that Bongomania has made available, still no dice. So here goes. I just picked up a pre-"True Bypass" EBS MultiComp from Ebay, the circuit board is printed (c)1999. I don't have the manual, but I checked EBS's website and their PDF version didn't answer my question, which is regarding the adjustment of the internal trim pots. I've read advice here that dealt with adjusting the interior trim pots to tailor high and low threshold limits and would like to explore this for myself. I do not know if the previous owner monkeyed with anything, but the case has definitely been opened as the screw faces are a little worn. I didn't think this was a big deal, as I anticipated being able to visually reference the positions of each pot (more on that later). I've opened the pedal up and am currently looking at the circuit board. I was expecting to see two trim pots which would make for a fairly simple adjustment. Instead, there are 2 sets of pots, one near the upper left corner of the board, the left one labeled "HIGH" and the right labeled "LOW". I'm assuming these adjust threshold. The other set of pots are on the bottom left corner of the board. The left is labeled "LO" and the right "HI BIAS". I'm assuming that these two are not the pots I'm looking for. So, assuming we can iron out which pots adjust threshold, I'm going to run into another problem, and that is this: I don't know how to read the pot position. Each pot has what appears to be a "5" on its face and a flat portion on the outer edge. I assume (there's that word again!) that one of these is used as a reference. If not, what is the correct visual reference point to determine where in the rotation the pot currently sits? I'm not comfortable trusting my ears alone as I am new to compression. Also I have a tendency to break things when I don't do my homework, and I'd rather not cowboy learn on this particular piece of equipment. Thanks in advance.