Can a lower grade CRS produce a higher grade CRS?

[lowell]

Is it possible for a grade B CRS to produce a higher grade CRS,like A or S grade maybe?thanks.

[planted86]

you can do that by selective breeding... selecting a better grade b then breed them then select the better ones then breed them till you get a higher grade...

[haywas_35]

Yes, you must have patience to do selective breeding and it will take months maybe years to get to higher grade that you want.

[Radiance]

It also depends on the gene heritage from the parents...
IMO, try not to inbreed too many generations...

[lowell]

got it.thanks guys.