pure morning, i like to use the history for modeling. for me it is more intuitve to animate e.g. a circle. then create an animtion snapshot and loft. and now when i want to change the look of the loft i just change the keys of the animated circle. i sometimes modify the history, so that a polygon smoothing gets changed - e.g. the number of divisions. duplicating isoparms out of a nurbs - to loft or something - and when animating the nurbs, the loft animtes as well. this kind of things ...