That was very impressive riding in the vid
Just my tuppence worth on cornering,
I've always shifted my weight on corners, going round roundabouts etc, even back in the old days (30 odd years ago) on non sports bikes, it just felt right to me and as hard as i might i find it really weird sitting bolt upright in the seat while trying to corner...
And in answer to you oldyeti, as long as you use the right line through a bend you can see up the road just fine, also getting off the seat is especially usefull in the wet as it gives your tyres a greater contact patch on the road and when bikes tyres have as little as a credit card size contact area with the tarmac any thing to help when you have 170bhp to try to put down is welcome in my book,
Just a side note if anyone needs more confidence they should try doing a bike safe course with the a police rider, or a few trackdays that will boost anyones levels of skill wet or dry, well worth the £45 it costs for bike safe