Alternatively, consider 11's mod from 2006:
http://www.chiefdelphi.com/media/photos/24801
One thing that 1293 did in the same year was crack open the base and add rubber bands meant for braces to the stock springs; the result, combined with a change from the stock handle to a shifter knob, was a much tighter feel--even without the knob, you could feel the difference for no money. (Come now, if you can't find anybody at your school with braces and rubber bands to spare...)