Pajero Owners Club of South Africa

I hear so many reports about OME / Tough Dog / EFS and, and, but no one ever talks about Koni. Is there a reason for not considering them? I am still very confused what to use. We are moving to Namibia to become adventurers and go places where others don't go.
We are doing quite a bit of corrugated dirt road and it is driving me up the wall when it feels like everything is going to fall apart. My friends have no issue with dirt road - they claim the faster you go the better is becomes. No for me though.
Can I ask for your expert advice?