Hi EssBee
The route I was refering to is the Purple one, it skirts the Ngoye forest. The R66 from Ginggunglovu to Eshowe is not so flat, nice twisties on that route.
If you want hills, do the route from Eshowe to the Goedetrou** Dam past the Dam wall up to the R34 and then come down Melmoth Pass.