This is the exact guide I used to adjust my Hitachi DVD pot to 3.05. Success!
Will release more info on how good or bad my laser gets after a few more plays on backups and success boot rates etc...
Tweeked my Pot drive is much quieter so im happy with that but backups still dont boot i have an NEC im 99% sure this is the problem with Hitachi drives.
Takes about 10 seconds longer than booting ORIG disc. I would say this is excellent because it is boot 14/14 back-ups I have now + played a few of then for a couple hours each. Only time will tell me the durability. POT SETTING is 3.05.