Want to sandblast -Need Guidance

[Grouse]

more photos
Here you can see the cleaned out pitting on the frame from the left grip. It is not super deep and for a 389 dollar pistol i could careless.


Here is what looks like horrible pitting on the right grip back strap. This had me concerned. It just looked massively deep.



After media blasting it looked very minor.









Right side of the frame, with almost no pitting in the grip area, apparently seldom carried by a leftie.


here is the left side, clearly carried by a righty.



Left frame together



Back strap together