Even patching compounds that "accept stain" never come out the same color as actual wood.

Cross grain plugs made from actual wood are about the least visible method.

I agree....I am using #9- 3" exterior deck screws. What size counterbore bit would i need and what size plugs? Thanks

Measur4e a head and go up to the next available size of plug.

While it is possible to make plugs, it chews up a lot of wood that needs to be pretty high grade.

The manufacturer's can use scraps they would otherwise pitch anyway.

1/16 increments are common, with the taper on the plug sides being about that amount.

One last question....do they make a permanent marker for touch ups?Needs to be for outdoor.