C) Which geometry is better
,{Euclidian or Non Euclidian? )
http://en.wikipedia.org/wiki/Non-Euclidean_geometry
By the Way, the data you need is the Trail, as plotted out on the Ground-Plane.
Low-trail may be 'twichy' un-loaded , but as taking things with you makes a Bike More Useful,
a Good Sized Front load neutralizes that feel, and it is said to handle better that way
than the same load on a larger trail front end.