I'm stumped, Animato build seriously lacking volume

[AJPennypacker]

Hi all, I've built an Animato from layout here;

http://tagboardeffects.blogspot.ca/2015/11/human-gear-animato.html
(schematic below)

Functions as you'd expect except for a real lack of volume. With Vol and Dist cranked I get levels just below unity. I've replaced the electrolytics and the transistors but it hasn't improved. I believe this pedal should have tones of volume so any help would be really appreciated.

Any thoughts on what I should check?

[Govmnt_Lacky]

I see lots of 100 OHM and 100K OHM values in there. Have you checked ALL of your resistor values to see if possibly something got mixed up?

[AJPennypacker]

Just triple checked the 100 vs 100k, will give them all another look.

Thx for the help

[Jebus]

I would audioprobe the circuit from input to output and see where it gets quieter.

[AJPennypacker]

Great suggestion, feel a bit silly but found a bridge and now it's blowing the roof off.

Thanks again for the help, really appreciate it.