Well I was thinking of shaving down the sides of grip some. Only problem is it has a low ser. Number xxa0006. What you think, should I leave it the way it is.

If you carry through with this, I'd certainly like to hear the results.

What's your reason for considering the modification?

I wouldnt worry about production number unless you had the first one, dont see these ever being a collectors gun. Watch how much material you remove, they basically have these guns as light and thin as they can get. Compare the frame/barrel/slide of a Sigma to an SD night and day difference

Thanks , will do. Just trying to get a little better fit.