Originally Posted by mintyai
I have just shortened my chain by half a link so I can switch between a 16t and 14t cog for road/track useage. For the 16t this moved my rear axle about 12mm forward. I could not believe how much this changed the handling of the bike: It is quite a bit more responsive now.
I don't believe that moving your wheel forward a mere 12mm will make a noticable difference in handling. Are you sure its not your imagination?