There's something weird going on, the base timing keeps changing on me. The dizzy is locked down and the sensor is bolted in tight. A few days ago I checked the timing because I thought I heard it pinging in boost, it was advanced, I adjusted the trigger angle to correct it. Today I checked again, it was retarded 8*, I adjusted the trigger angle again, 8* change, it moved 10, dialed it back a bit, no change, I set it back to the number I started with, but now the timing is correct. 
  
So the series of events went like this today:  
timing light reads 12*(20 commanded) 
change trigger angle from 329 to 321 
timing light reads 23* 
trigger angle to 324 
little/no visible change 
trigger angle to 329 
timing light reads 20* 
  
MS2 v3 
wasted spark 
DIYAT wheel in the turbo dizzy