Thanks for the suggestion guys. I checked the resistors at R5 and R7, and I have 47.5ohm resistors in those spots. I've been using my new Fluke 287 DVM, but I'll try my old Fluke 117 to see if it gives similar numbers.
I did try turning up the quiescent current to 0.22V across R32 and R33. One thing I noticed was the left sink (Q8M) definitely gets pretty warm, while the right sink (Q9M0) stays cooler in comparison. Even after only a couple of minutes the Q8M heatsink gets pretty hot. I can hold my hand on there for about 5-10 seconds, before it gets uncomfortable. Have you guys noticed this same behavior.
So what would be the effect on the amp if I ran it at these lower values (across R4, R10, etc)? Will it have a significant effect on performance or reliability?
Thanks for the help guys, I'll keep trying things and studying the schematic.