I've been alternating rides to share the load between the bikes and evaluate the differences. No real evidence of the new bike being used though. Not yet!
The hill in question drops 350M over a km. Sections of it being nastier than others. No individual part appears to be unridable with a bit of momentum and some solid line selection, but maintaining that for the amount of time neccessary to clear the hill would be chaos. Needless to say, I opted to come home via the road. 350M over 12kms
Heres some footage a mate took at the end of 2011. Shes grown over a bit more, and washed out some since, not to mention we just had a week of rain and most the normal creeks were unpassable.
http://www.youtube.com/watch?v=JK1qTEXBSr0