Niku-Sama, when you adjusted the gain and bias, laser strength, did you just fiddle with them til you found a setting that worked or go off actual numbers you found online? I've read a couple write-ups and one guy says to use specific voltages whereas another guy says the number will vary from console to console due to age and how much wear and tear was put onto the system. the latter seems more likely but the guides I was reading were describing repairs for the PAL systems so I'm not sure if I should go by their numbers and instructions