What I was referring to with regards to the LWB and Atlantis dunes is:
1. Power to weight ratio is a bit less than SWB and as such, requires more run-up to a steeper dune.
2. The rear over-hang of the LWB makes it next to impossible to go through a deep "dip",ie. where you go down one dune directly driving up the next (like at "groot duin" when you take the path to the right of the dune).
To each, his own. I am by no means saying that you shouldn't take part. Go for it and give it all you've got!
I will try to make it, but my weekends aren't my own unfortunately.
Nico.