No, I don't redraw them freehand.  Cel pens are a 
bitch to erase.. generally I'll print out the 
artbook/manga image I'm interested in and work it 
over with whiteout and redo lines and details as 
well as get rid of/add stuff in a more cel-able 
manner until I get a frankenstein looking 
workable cel sketch.  No one should ever have to 
see those sketches, it would varnish their idea 
of nice pretty sketches and cels *l*

...and I'd love to cel-ize some of your stuff.  I 
think it would be fun.  Just... still finishing 
scavenger hunt winners/free cel cels.  Just a 
couple more... *passes out on floor, bottles of 
paint spilling all around looking like multi-
colored blood*