pma/gen lining, more power

hi everyone, im not done testing yet but the results up to now are amazing, im testing a lining around the inside of the pma, a sheet metal / tin lining covering all the aluminum outer casing and up and around the ends of the windings extending almost to the rotor shaft. the gause meter before and after readings on the outside and ends of the pma , they were only 1/4 after the lining was installed and the output of the pma was 12% higher. like I said this is still being tested but looks vary promising upgrade. I found this idea on the net and adapted it to the pma. the lining must fit tight to the stator and not touch the windings or the rotor shaft. I will be updating this post, I am tring a different type of gen to verify these findings will improve other types of gen/pma . if anyone knows of this update or mod , try this . thanks for reading.