Does it help to have suspension for ZZ's (not SE's) if You only drive on tracks or flat surfaces, does it help Your turning radius or is it just better to have on Bits with Big Tires and driving in dirt and outside on unsmooth surfaces.
sess is right, if the surface you're driving on consists of minor bumps like concrete, then springs are kings. on a perfectly smooth surface then i'd just go with the sway bar or nothing at all.
Most pen springs I've tried were attracted to the magnet. I did find some mechanical pencils with springs that worked well. You're gonna have to search.
lol sessiz that reminds me of when i used to take the caps off those cheap lead pencils and bite the end off with my teeth and it would go flying throung the air