I think I will start the boner of the day award. And I win today! Got a little over 1/2 gallon of 20% sidewinder through my mg66. So as I like byrons 30% best of all the fuels I have tried, I went ahead and added the extra shim,reset the idle gap and heated it up with the heat gun. Went out side fired it up was running way fat. So I started fiddling with the settings,lsn-hsn. Just smoken and running way fatttttttttt! Got 2 tanks through it. I then figured something must have happened,like to many shims? But I reasoned that a total of .010 was not that much for run in. So I quit for the day wondering what was going on with it. And as I looked over to my left on my little engine table tray there sat the problem. I had forgotten to put in my restricter! Dumb sht!!!!!!!!!!!!