Blaauwkrantz in the Eastern Cape is excellent. It is hilly, and the kudu are totally indigenous to those mountains and have been there since time began. The Cape kudu is indeed slightly smaller, but they still look impressive to me. If you would like to hike hills for kudu, it is fantastic. I understand the shooting ranges are longer than in Limpopo, which was a worry for me as I'm not a very good shot - but I managed.