For what it's worth.....
Lodge makes a great product and likley needs no modification
The lack of smoothness is actually an advantage and not a disadvantage.
99% of the time if food sticks it is becuase the item was
1. improperly seasoned
2. improperly cleaned
3. used improperly for the item being cooked.
Just some examples:
Some oils will produce a gummy varnish like residue on the pan making food stick.
Soap will remove the seasoning.
To high or to low of heat can cause food to stick, depending on what your cooking.