Threshold at 10:00, reduction just below 12.
Adjust as necessary.
If that’s still not enough, perhaps you’re just usig overly noisey gear crabked up into higher gain than it should be (no offense, im not trying to call anybody’s tone trash or anything…. But some people.go too far with the gain when they don’t need it. Less it more)

I see this thread has been dead a long time, but I’d like to clear a few things up for any future visitors.

I want to make these things very clear…. I’m no expert, but from using common sense based on the knowledge I’ve gathered. Not everyhing I say is correct, and I wont be held responsible. TWEAK AT YOUR OWN RISK. ALL OF THESE POTS ARE SUPER SENSITIVE AND WILL THROW OFF YOUR SOUND IF ADJUSTED TOO QUICKLY/NOT PRECISELY
.
1 -trim pots 1-4 affect the Bucket brigade stuff in the circuitry. Im pretty sure that by playing with those, you’ll be messing with the output of each channel of the delay path. Skippy delays or no sound happen when you mess those up.
2 -trim8 is the mod depth. Go ahead and play with that. Its just a depth knob.
3 -trim5 let’s you play with the output of the unit in general, if you find your pedal has a volume drop/jump when engaged, play with this.
4 – i think Trim6 has to do with balancing the bucket brigade (pots 1-4). I strongly advise you NOT to touch it.

If your pedal is outputting delays as usual aside from unity volume issues (volume jump/drop when turned on) then DON’T TOUCH ANYTHING other than trim8 for mod depth.
If you can’t hear anything when its on, leave everything alone except trim5 (gain/volume)
you really dont need to touch anything other than the trims from depth and gain/volume IF you even have a volume problem.

Trims 1,2,3,4 and 6 shouldn’t be fiddled with unless you’re having serious issues and have already voided the warranty… But doing any of this will void tour warranty so BE CAREFUL, TWEAK AT YOUR OWN RISK, ONLY ADJUST THINGS IN SMALL INCREMENTS