i naturally have a weak lower body but after years of training i believe it's ok now, i have detailed quads, hard hams, and nice calves.. sure i will never have great calves one day like any gifted guy in this area (even who doesnt train at all) but i think to have just "nice calves" is better than nothing so it's not wise to ignore your calves just because they are not genetically good!!.. be patient till they respond and sure one day they will!!..