WP Shock for HP2

I was talking to Darren at Vines a week or so ago, he tells me that they helped build some demo/display bike that some extremely talented individual no wows crowds with. He claims that they fitted a new WP rear shock (MX5018) and that it significantly improves the back end.

Anyone had any experience of this or ridden a similarly equiped bike?

I bet that'll be cheap then

Any idea why they changed it at all(apart from the bleeding obvious,of course).Have a look at www.pgdakar.com (I think?) the only bloke who had a problem with the suspension,was the only bloke who changed it from standard!