Lightening the SR20 flywheel

[Christian Beaudry]

I searched around, but havent found anything tangible.

I have a 2001 Sentra SE and I wanted a light flywheel.
Found a 1991 G20 flywheel for 50$ canadian, so I thought Id
bring it to this guy who lightens Honda flywheels, and he said
he couldnt do mine.

Design is different and he couldnt only take off a max of 2 or 3 pounds.

So my question is, I know some of you have lightened yours and how many
pounds where you able to take off and from where. Is there a howto somewhere
on exactly how to lighten the SR20 flywheel ,where to take off the weight
from ?

Thanks in advance,

Chris